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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.3203 Moderate: qemu-kvm-rhev security and bug fix update 15 December 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: qemu-kvm-rhev Publisher: Red Hat Operating System: Red Hat Enterprise Linux Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-15289 CVE-2017-14167 CVE-2017-11334 CVE-2017-10664 CVE-2017-7539 Reference: ESB-2017.3002 ESB-2017.2873 Original Bulletin: https://access.redhat.com/errata/RHSA-2017:3471 https://access.redhat.com/errata/RHSA-2017:3470 https://access.redhat.com/errata/RHSA-2017:3466 https://access.redhat.com/errata/RHSA-2017:3474 https://access.redhat.com/errata/RHSA-2017:3473 https://access.redhat.com/errata/RHSA-2017:3472 Comment: This bulletin contains six (6) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security and bug fix update Advisory ID: RHSA-2017:3471-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2017:3471 Issue date: 2017-12-14 CVE Names: CVE-2017-7539 CVE-2017-10664 CVE-2017-11334 CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 8.0 (Liberty). Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat OpenStack Platform 8.0 (Liberty) - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539) * Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664) * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. Bug Fix(es): * Hot-unplugging Virtual Function I/O (VFIO) devices previously failed when performed after hot-unplugging a vhost network device. This update fixes the underlying code, and the VFIO device is unplugged correctly in the described circumstances. (BZ#1498141) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1466190 - CVE-2017-10664 Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort 1471638 - CVE-2017-11334 Qemu: exec: oob access during dma operation 1472484 - virtio-net: enable configurable tx queue size 1473622 - CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1498141 - Hot-unplugging a vhost network device leaks references to VFIOPCIDevice's [OSP 8] 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Red Hat OpenStack Platform 8.0 (Liberty): Source: qemu-kvm-rhev-2.9.0-16.el7_4.11.src.rpm x86_64: qemu-img-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7539 https://access.redhat.com/security/cve/CVE-2017-10664 https://access.redhat.com/security/cve/CVE-2017-11334 https://access.redhat.com/security/cve/CVE-2017-14167 https://access.redhat.com/security/cve/CVE-2017-15289 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaMveKXlSAg2UNWIIRAv7IAJ0ZJkFtYMfD0H19xps9qFI5viOc+wCgmntl EC/o8qOngooi5xWpk5zGaBc= =xJ4o - -----END PGP SIGNATURE----- - -------------------------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security and bug fix update Advisory ID: RHSA-2017:3470-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2017:3470 Issue date: 2017-12-14 CVE Names: CVE-2017-7539 CVE-2017-10664 CVE-2017-11334 CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 9.0 (Mitaka). Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat OpenStack Platform 9.0 - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539) * Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664) * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. Bug Fix(es): * Hot-unplugging Virtual Function I/O (VFIO) devices previously failed when performed after hot-unplugging a vhost network device. This update fixes the underlying code, and the VFIO device is unplugged correctly in the described circumstances. (BZ#1498140) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1466190 - CVE-2017-10664 Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort 1471638 - CVE-2017-11334 Qemu: exec: oob access during dma operation 1473622 - CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1498140 - Hot-unplugging a vhost network device leaks references to VFIOPCIDevice's [OSP 9] 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Red Hat OpenStack Platform 9.0: Source: qemu-kvm-rhev-2.9.0-16.el7_4.11.src.rpm x86_64: qemu-img-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7539 https://access.redhat.com/security/cve/CVE-2017-10664 https://access.redhat.com/security/cve/CVE-2017-11334 https://access.redhat.com/security/cve/CVE-2017-14167 https://access.redhat.com/security/cve/CVE-2017-15289 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaMvg9XlSAg2UNWIIRAnclAJ43BD73fEmk83I/zuuDw7eoMv6azgCgvBr4 xcKifEES6tgbYqUoJ71pwSw= =HkEw - -----END PGP SIGNATURE----- - -------------------------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security and bug fix update Advisory ID: RHSA-2017:3466-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2017:3466 Issue date: 2017-12-14 CVE Names: CVE-2017-7539 CVE-2017-10664 CVE-2017-11334 CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 11.0 (Ocata). Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat OpenStack Platform 11.0 - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539) * Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664) * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. Bug Fix(es): * Hot-unplugging Virtual Function I/O (VFIO) devices previously failed when performed after hot-unplugging a vhost network device. This update fixes the underlying code, and the VFIO device is unplugged correctly in the described circumstances. (BZ#1498135) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1466190 - CVE-2017-10664 Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort 1471638 - CVE-2017-11334 Qemu: exec: oob access during dma operation 1473622 - CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1498135 - Hot-unplugging a vhost network device leaks references to VFIOPCIDevice's [OSP 11] 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Red Hat OpenStack Platform 11.0: Source: qemu-kvm-rhev-2.9.0-16.el7_4.11.src.rpm x86_64: qemu-img-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7539 https://access.redhat.com/security/cve/CVE-2017-10664 https://access.redhat.com/security/cve/CVE-2017-11334 https://access.redhat.com/security/cve/CVE-2017-14167 https://access.redhat.com/security/cve/CVE-2017-15289 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaMvh6XlSAg2UNWIIRAl4lAKCASt5xxFArZsc/zYYgzpAFbcad9wCgqmXi M4cEIqKAS3vjWPT2bYXqF3A= =EbQ8 - -----END PGP SIGNATURE----- - -------------------------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security and bug fix update Advisory ID: RHSA-2017:3474-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2017:3474 Issue date: 2017-12-14 CVE Names: CVE-2017-7539 CVE-2017-10664 CVE-2017-11334 CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 10.0 (Newton). Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat OpenStack Platform 10.0 - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539) * Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664) * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. Bug Fix(es): * Hot-unplugging Virtual Function I/O (VFIO) devices previously failed when performed after hot-unplugging a vhost network device. This update fixes the underlying code, and the VFIO device is unplugged correctly in the described circumstances. (BZ#1498139) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1466190 - CVE-2017-10664 Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort 1471638 - CVE-2017-11334 Qemu: exec: oob access during dma operation 1473622 - CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1498139 - Hot-unplugging a vhost network device leaks references to VFIOPCIDevice's [OSP 10] 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Red Hat OpenStack Platform 10.0: Source: qemu-kvm-rhev-2.9.0-16.el7_4.11.src.rpm x86_64: qemu-img-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7539 https://access.redhat.com/security/cve/CVE-2017-10664 https://access.redhat.com/security/cve/CVE-2017-11334 https://access.redhat.com/security/cve/CVE-2017-14167 https://access.redhat.com/security/cve/CVE-2017-15289 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaMvjyXlSAg2UNWIIRAvfwAJ47qWiUqtCwtGl2CvuZBc4G8f7klgCgmTpj dbvPXUh6TxhGOKI0YT8Cmlo= =Jd32 - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security update Advisory ID: RHSA-2017:3473-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2017:3473 Issue date: 2017-12-14 CVE Names: CVE-2017-7539 CVE-2017-10664 CVE-2017-11334 CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539) * Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664) * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1466190 - CVE-2017-10664 Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort 1471638 - CVE-2017-11334 Qemu: exec: oob access during dma operation 1473622 - CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7: Source: qemu-kvm-rhev-2.9.0-16.el7_4.11.src.rpm x86_64: qemu-img-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7539 https://access.redhat.com/security/cve/CVE-2017-10664 https://access.redhat.com/security/cve/CVE-2017-11334 https://access.redhat.com/security/cve/CVE-2017-14167 https://access.redhat.com/security/cve/CVE-2017-15289 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaMvngXlSAg2UNWIIRAn6eAJ9h9xSMPSpSudmyH08WomyfoB3wAACfZA27 Gvb4FBRbxTok/PS/mD9XY8A= =Mheh - -----END PGP SIGNATURE----- - -------------------------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: qemu-kvm-rhev security update Advisory ID: RHSA-2017:3472-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://access.redhat.com/errata/RHSA-2017:3472 Issue date: 2017-12-14 CVE Names: CVE-2017-7539 CVE-2017-10664 CVE-2017-11334 CVE-2017-14167 CVE-2017-15289 ===================================================================== 1. Summary: An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products. Security Fix(es): * An assertion-failure flaw was found in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service. (CVE-2017-7539) * Quick Emulator (QEMU) built with the Network Block Device (NBD) Server support is vulnerable to a crash via a SIGPIPE signal. The crash can occur if a client aborts a connection due to any failure during negotiation or read operation. A remote user/process could use this flaw to crash the qemu-nbd server resulting in a Denial of Service (DoS). (CVE-2017-10664) * Quick Emulator (QEMU), compiled with qemu_map_ram_ptr to access guests' RAM block area, is vulnerable to an OOB r/w access issue. The crash can occur if a privileged user inside a guest conducts certain DMA operations, resulting in a DoS. (CVE-2017-11334) * Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur due to an integer overflow while loading a kernel image during a guest boot. A user or process could use this flaw to potentially achieve arbitrary code execution on a host. (CVE-2017-14167) * Quick emulator (QEMU), compiled with the Cirrus CLGD 54xx VGA Emulator support, is vulnerable to an OOB write access issue. The issue could occur while writing to VGA memory via mode4and5 write functions. A privileged user inside guest could use this flaw to crash the QEMU process resulting in Denial of Serivce (DoS). (CVE-2017-15289) Red Hat would like to thank Alex for reporting CVE-2017-11334; Thomas Garnier (Google.com) for reporting CVE-2017-14167; and Guoxiang Niu (Huawei.com) for reporting CVE-2017-15289. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1466190 - CVE-2017-10664 Qemu: qemu-nbd: server breaks with SIGPIPE upon client abort 1471638 - CVE-2017-11334 Qemu: exec: oob access during dma operation 1473622 - CVE-2017-7539 Qemu: qemu-nbd crashes due to undefined I/O coroutine 1489375 - CVE-2017-14167 Qemu: i386: multiboot OOB access while loading kernel image 1501290 - CVE-2017-15289 Qemu: cirrus: OOB access issue in mode4and5 write functions 6. Package List: Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7: Source: qemu-kvm-rhev-2.9.0-16.el7_4.11.src.rpm x86_64: qemu-img-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-common-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-rhev-debuginfo-2.9.0-16.el7_4.11.x86_64.rpm qemu-kvm-tools-rhev-2.9.0-16.el7_4.11.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7539 https://access.redhat.com/security/cve/CVE-2017-10664 https://access.redhat.com/security/cve/CVE-2017-11334 https://access.redhat.com/security/cve/CVE-2017-14167 https://access.redhat.com/security/cve/CVE-2017-15289 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2017 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFaMvmlXlSAg2UNWIIRAmtjAJ4kgvSanP/oz7ob9PmHf/8/fsJqcgCfQ06t RtcHhYj1YeNgANaO18Rz6KU= =McuV - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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