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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.0648 Important: kernel-rt security and bug fix update 7 March 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel-rt Publisher: Red Hat Operating System: Red Hat Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-12188 CVE-2017-7518 Reference: ESB-2017.2852 ESB-2017.2807 ESB-2017.2751 ESB-2017.2729 ESB-2017.2401 Original Bulletin: https://access.redhat.com/errata/RHSA-2018:0412 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2018:0412-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:0412 Issue date: 2018-03-06 CVE Names: CVE-2017-7518 CVE-2017-12188 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. 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 Realtime (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * Kernel: KVM: MMU potential stack buffer overrun during page walks (CVE-2017-12188, Important) * Kernel: KVM: debug exception via syscall emulation (CVE-2017-7518, Moderate) Bug Fix(es): * The kernel-rt packages have been upgraded to the 3.10.0-693.21.1 source tree, which provides a number of bug fixes over the previous version. (BZ#1537671) 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 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1464473 - CVE-2017-7518 Kernel: KVM: debug exception via syscall emulation 1500380 - CVE-2017-12188 Kernel: KVM: MMU potential stack buffer overrun during page walks 1537671 - kernel-rt: update to the RHEL7.4.z batch#5 source tree 6. Package List: Red Hat Enterprise Linux for Real Time for NFV (v. 7): Source: kernel-rt-3.10.0-693.21.1.rt56.639.el7.src.rpm noarch: kernel-rt-doc-3.10.0-693.21.1.rt56.639.el7.noarch.rpm x86_64: kernel-rt-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm Red Hat Enterprise Linux Realtime (v. 7): Source: kernel-rt-3.10.0-693.21.1.rt56.639.el7.src.rpm noarch: kernel-rt-doc-3.10.0-693.21.1.rt56.639.el7.noarch.rpm x86_64: kernel-rt-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.21.1.rt56.639.el7.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-2017-7518 https://access.redhat.com/security/cve/CVE-2017-12188 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 2018 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFanwu8XlSAg2UNWIIRAqH+AJ0aRY16P4nEFZvmOshKbt2+wLi6YACgtVT+ 128kQdnh6pCPZmXvL+ZwWAo= =pGIK - -----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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