-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2018:3822-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:3822 Issue date: 2018-12-12 CVE Names: CVE-2017-8824 CVE-2017-11176 CVE-2017-15265 ==================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 5 Extended Lifecycle Support. 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 Server (v. 5 ELS) - i386, noarch, s390x, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: Use-after-free vulnerability in DCCP socket (CVE-2017-8824) * kernel: Use-after-free in sys_mq_notify() (CVE-2017-11176) * kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank Mohamed Ghannam for reporting CVE-2017-8824. Bug Fix(es): * Previously, on certain Intel 64 systems, the microcode contained a new model-specific register (MSR) that was not present in the older microcode running on CPUs that had not been updated yet. As a consequence, the system crashed due to a general protection fault on a CPU running the older microcode. This update fixes the bug by having the kernel use MSR access routines that handle the general protection fault. As a result, the system no longer crashes in the described scenario. (BZ#1651481) 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/): 1470659 - CVE-2017-11176 kernel: Use-after-free in sys_mq_notify() 1501878 - CVE-2017-15265 kernel: Use-after-free in snd_seq_ioctl_create_port() 1519591 - CVE-2017-8824 kernel: Use-after-free vulnerability in DCCP socket 6. Package List: Red Hat Enterprise Linux Server (v. 5 ELS): Source: kernel-2.6.18-436.el5.src.rpm i386: kernel-2.6.18-436.el5.i686.rpm kernel-PAE-2.6.18-436.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-436.el5.i686.rpm kernel-PAE-devel-2.6.18-436.el5.i686.rpm kernel-debug-2.6.18-436.el5.i686.rpm kernel-debug-debuginfo-2.6.18-436.el5.i686.rpm kernel-debug-devel-2.6.18-436.el5.i686.rpm kernel-debuginfo-2.6.18-436.el5.i686.rpm kernel-debuginfo-common-2.6.18-436.el5.i686.rpm kernel-devel-2.6.18-436.el5.i686.rpm kernel-headers-2.6.18-436.el5.i386.rpm kernel-xen-2.6.18-436.el5.i686.rpm kernel-xen-debuginfo-2.6.18-436.el5.i686.rpm kernel-xen-devel-2.6.18-436.el5.i686.rpm noarch: kernel-doc-2.6.18-436.el5.noarch.rpm s390x: kernel-2.6.18-436.el5.s390x.rpm kernel-debug-2.6.18-436.el5.s390x.rpm kernel-debug-debuginfo-2.6.18-436.el5.s390x.rpm kernel-debug-devel-2.6.18-436.el5.s390x.rpm kernel-debuginfo-2.6.18-436.el5.s390x.rpm kernel-debuginfo-common-2.6.18-436.el5.s390x.rpm kernel-devel-2.6.18-436.el5.s390x.rpm kernel-headers-2.6.18-436.el5.s390x.rpm kernel-kdump-2.6.18-436.el5.s390x.rpm kernel-kdump-debuginfo-2.6.18-436.el5.s390x.rpm kernel-kdump-devel-2.6.18-436.el5.s390x.rpm x86_64: kernel-2.6.18-436.el5.x86_64.rpm kernel-debug-2.6.18-436.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-436.el5.x86_64.rpm kernel-debug-devel-2.6.18-436.el5.x86_64.rpm kernel-debuginfo-2.6.18-436.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-436.el5.x86_64.rpm kernel-devel-2.6.18-436.el5.x86_64.rpm kernel-headers-2.6.18-436.el5.x86_64.rpm kernel-xen-2.6.18-436.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-436.el5.x86_64.rpm kernel-xen-devel-2.6.18-436.el5.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-2017-8824 https://access.redhat.com/security/cve/CVE-2017-11176 https://access.redhat.com/security/cve/CVE-2017-15265 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXBEhINzjgjWX9erEAQic+g//ZMqvcmps8686ObdVG5sZI68u7Pkw71Bx /rjUSPE+qUw4GzZ6U7WfdhrlpFu7u29/qnHUhZ+q58ODGhTLIB3RtTIlvvWt3OoM jyol5dhEibl2n1PzI+XeU6hRbaOiQvE8ZSSZ6EaDgZNnrDMKwMdv/LIrWXG5bKjX BSle3iSJJwuwB/QxdDU7/Qf8exD8Nv45XbAJjiXXMG1/fUNapKIsiqRMUkaSaKt9 uod2ZnJN/fYzk9Tzftp5qPkAKRBYJNMd/2LtkRYs7lDw1DTnjc3yZgyrXKzyHlBp mJIUfUlypslVOJQqgp41wuHU4mu/02WBGewPLGEdU+rrKtyrAX9ejH0zOVFT2Pi4 b5pRu/4iHET233YPcc+FG9zOSFOCIFDlroyXZcrGXKOpSyQPC53b+EdixyFWyAzM t1MMXvVBysGv1g09a46OY4fCHGuxJoNI2F0MMMl3r1iQyBKKvFfupn9KwP6F/nhR OlDkS809kfG9LRK7UMvZdIyUXXYDJemnd6KibkfXX1MdrIgGRrciGdR5/FDVSc2X V5PYqpb4hM4x82ExaEg0enYSptx904CNwEbpXyWf9DX+jtFPk7F4ffvQretHiQV2 wjoyRAeCQRYH+1nrcsS+Jz2kPqp5Zq5NBJM0EI/v9KmMPEBz4NgSM9FEfDx4wtR6 ZT6t1j5KoXA=i39c -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce