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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.3208 Important: qemu-kvm and qemu-kvm-rhev security updates 23 December 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: qemu-kvm qemu-kvm-rhev Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 KVM Linux variants Impact/Access: Root Compromise -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-7512 CVE-2015-7504 Reference: ESB-2015.3000.2 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2015-2694.html https://rhn.redhat.com/errata/RHSA-2015-2696.html Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running qemu-kvm or qemu-kvm-rhev check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm security update Advisory ID: RHSA-2015:2694-01 Product: Red Hat Enterprise Linux Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-2694.html Issue date: 2015-12-22 CVE Names: CVE-2015-7504 CVE-2015-7512 ===================================================================== 1. Summary: Updated qemu-kvm packages that fix two security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow flaw was discovered in the way QEMU's AMD PC-Net II Ethernet Controller emulation received certain packets in loopback mode. A privileged user (with the CAP_SYS_RAWIO capability) inside a guest could use this flaw to crash the host QEMU process (resulting in denial of service) or, potentially, execute arbitrary code with privileges of the host QEMU process. (CVE-2015-7504) A buffer overflow flaw was found in the way QEMU's AMD PC-Net II emulation validated certain received packets from a remote host in non-loopback mode. A remote, unprivileged attacker could potentially use this flaw to execute arbitrary code on the host with the privileges of the QEMU process. Note that to exploit this flaw, the guest network interface must have a large MTU limit. (CVE-2015-7512) Red Hat would like to thank Qinghao Tang of QIHU 360 Marvel Team and Ling Liu of Qihoo 360 Inc. for reporting the CVE-2015-7504 issue, and Ling Liu of Qihoo 360 Inc. for reporting the CVE-2015-7512 issue. The CVE-2015-7512 issue was independently discovered by Jason Wang of Red Hat. All qemu-kvm users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 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. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1261461 - CVE-2015-7504 Qemu: net: pcnet: heap overflow vulnerability in pcnet_receive 1285061 - CVE-2015-7512 Qemu: net: pcnet: buffer overflow in non-loopback mode 6. Package List: Red Hat Enterprise Linux Desktop (v. 6): Source: qemu-kvm-0.12.1.2-2.479.el6_7.3.src.rpm i386: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.i686.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.i686.rpm x86_64: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-img-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.479.el6_7.3.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: qemu-kvm-0.12.1.2-2.479.el6_7.3.src.rpm x86_64: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-img-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.479.el6_7.3.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: qemu-kvm-0.12.1.2-2.479.el6_7.3.src.rpm i386: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.i686.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.i686.rpm ppc64: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.ppc64.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.ppc64.rpm x86_64: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-img-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.479.el6_7.3.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: qemu-kvm-0.12.1.2-2.479.el6_7.3.src.rpm i386: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.i686.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.i686.rpm x86_64: qemu-guest-agent-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-img-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-debuginfo-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-tools-0.12.1.2-2.479.el6_7.3.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-2015-7504 https://access.redhat.com/security/cve/CVE-2015-7512 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFWeWvnXlSAg2UNWIIRAnt+AKC2Jt5kBYpaeyAE4l82FKTFzuzPZQCeJV8Y spEstQ1UDGzb1w7O7iv/gVM= =k+SB - -----END PGP SIGNATURE----- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm-rhev security update Advisory ID: RHSA-2015:2696-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-2696.html Issue date: 2015-12-22 CVE Names: CVE-2015-7504 CVE-2015-7512 ===================================================================== 1. Summary: Updated qemu-kvm-rhev packages that fix two security issues are now available for Red Hat Enterprise Virtualization. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: RHEV Agents (vdsm) - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow flaw was discovered in the way QEMU's AMD PC-Net II Ethernet Controller emulation received certain packets in loopback mode. A privileged user (with the CAP_SYS_RAWIO capability) inside a guest could use this flaw to crash the host QEMU process (resulting in denial of service) or, potentially, execute arbitrary code with privileges of the host QEMU process. (CVE-2015-7504) A buffer overflow flaw was found in the way QEMU's AMD PC-Net II emulation validated certain received packets from a remote host in non-loopback mode. A remote, unprivileged attacker could potentially use this flaw to execute arbitrary code on the host with the privileges of the QEMU process. Note that to exploit this flaw, the guest network interface must have a large MTU limit. (CVE-2015-7512) Red Hat would like to thank Qinghao Tang of QIHU 360 Marvel Team and Ling Liu of Qihoo 360 Inc. for reporting the CVE-2015-7504 issue, and Ling Liu of Qihoo 360 Inc. for reporting the CVE-2015-7512 issue. The CVE-2015-7512 issue was independently discovered by Jason Wang of Red Hat. All qemu-kvm-rhev users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. 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. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1261461 - CVE-2015-7504 Qemu: net: pcnet: heap overflow vulnerability in pcnet_receive 1285061 - CVE-2015-7512 Qemu: net: pcnet: buffer overflow in non-loopback mode 6. Package List: RHEV Agents (vdsm): Source: qemu-kvm-rhev-0.12.1.2-2.479.el6_7.3.src.rpm x86_64: qemu-img-rhev-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-rhev-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-rhev-debuginfo-0.12.1.2-2.479.el6_7.3.x86_64.rpm qemu-kvm-rhev-tools-0.12.1.2-2.479.el6_7.3.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-2015-7504 https://access.redhat.com/security/cve/CVE-2015-7512 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFWeWv2XlSAg2UNWIIRAgQEAJ9mJUX7LH0n6VXMxVG3mcFIAJ50ewCfTgWo wmkjoS8fhaE3KYVmF1pS3no= =GFZk - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVnnhbH6ZAP0PgtI9AQIYhg//ad26JuxxjdpNW/1HcjsaYpZRuiBv7ZJF QHn+a64jkwzqoRzA5uJ3mtP+y/yg08o4X0uTpor3E/ApbnwOEiS7Tq0AXCSpiqmV amctWr6F11mYHoKqZUCRxjMkIoY+OWFnlGhPPCzdfkKmwuhCJ6rdiedcqJXR8Nqo Oxa5d7ayX0nQtdtDFZAh7O5ZSwhYCTf7n0bnwJam1r8v7fvJqZiLsCiXoXWI3nPU 5GODFDZ9C/TQ/DKHwaHB1Kaeh2YKhxlvLCaZ2powZ9c17FUqeZQ+p8ss7n4KCW2Q nANoDumhh/nF68XKbIwDRacYNEEi7gLWe6qM+CR0zhXOFJlOO86g4XLx73/kdkwP cd7BfSKD25E/cYoApriEYEHi+SQrA7YatmxFZKmjbs7OE/OAPsu0kGgSJv92JRLs 0f3eI+5yTJj+WjYZ68ZT/9cR+dKC0rbqdA4HQWfQTug5xaiYXm4NAH+VQZNfTF2Z fxRvfcJIHY3WAGOItJwNvED39PrK9IBQMk1iD4bdCY0og2aIINDb9B2POwvRTDiQ Hb8GLyY8ixNpOS3HuE4U367HTRiG3/lJRaafWX3NZLUpI2haL6PC+3xPHrnRszOH 8rEp73xpJ1r3OugPJqDoGGIVOq1cnUHy0XGBxTOIVEqXAqwb/z6HobFzsgIJvHkQ EzVHUU2miTo= =4r49 -----END PGP SIGNATURE-----