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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3563 kernel security, bug fix, and enhancement update 14 November 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux Server 6 Impact/Access: Root Compromise -- Existing Account Denial of Service -- Remote/Unauthenticated Reduced Security -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-14634 CVE-2018-10675 CVE-2018-5391 CVE-2017-18344 Reference: ESB-2018.3130 ESB-2018.2612 ESB-2018.2361 ESB-2018.2348.4 ESB-2018.2342 Original Bulletin: https://access.redhat.com/errata/RHSA-2018:3540 https://access.redhat.com/errata/RHSA-2018:3586 https://access.redhat.com/errata/RHSA-2018:3590 Comment: This bulletin contains three (3) Red Hat security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security, bug fix, and enhancement update Advisory ID: RHSA-2018:3540-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:3540 Issue date: 2018-11-13 CVE Names: CVE-2017-18344 CVE-2018-5391 CVE-2018-10675 CVE-2018-14634 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.4 Extended Update 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 ComputeNode EUS (v. 7.4) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.4) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - ppc64, ppc64le, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) * kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c (CVE-2017-18344) * kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact (CVE-2018-10675) * kernel: Integer overflow in Linux's create_elf_tables function (CVE-2018-14634) 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 Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391 and Qualys Research Labs for reporting CVE-2018-14634. Bug Fix(es): These updated kernel packages include also numerous bug fixes. Space precludes documenting all of the bug fixes in this advisory. See the descriptions in the related Knowledge Article: https://access.redhat.com/articles/3684891 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/): 1575065 - CVE-2018-10675 kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact 1609664 - CVE-2018-5391 kernel: IP fragments with random offsets allow a remote denial of service (FragmentSmack) 1610958 - CVE-2017-18344 kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c 1624498 - CVE-2018-14634 kernel: Integer overflow in Linux's create_elf_tables function 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.4): Source: kernel-3.10.0-693.43.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.43.1.el7.noarch.rpm kernel-doc-3.10.0-693.43.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.43.1.el7.x86_64.rpm kernel-debug-3.10.0-693.43.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.43.1.el7.x86_64.rpm kernel-devel-3.10.0-693.43.1.el7.x86_64.rpm kernel-headers-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.43.1.el7.x86_64.rpm perf-3.10.0-693.43.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm python-perf-3.10.0-693.43.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4): x86_64: kernel-debug-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.43.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v. 7.4): Source: kernel-3.10.0-693.43.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.43.1.el7.noarch.rpm kernel-doc-3.10.0-693.43.1.el7.noarch.rpm ppc64: kernel-3.10.0-693.43.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-693.43.1.el7.ppc64.rpm kernel-debug-3.10.0-693.43.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-693.43.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.43.1.el7.ppc64.rpm kernel-devel-3.10.0-693.43.1.el7.ppc64.rpm kernel-headers-3.10.0-693.43.1.el7.ppc64.rpm kernel-tools-3.10.0-693.43.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-693.43.1.el7.ppc64.rpm perf-3.10.0-693.43.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm python-perf-3.10.0-693.43.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm ppc64le: kernel-3.10.0-693.43.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-693.43.1.el7.ppc64le.rpm kernel-debug-3.10.0-693.43.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.43.1.el7.ppc64le.rpm kernel-devel-3.10.0-693.43.1.el7.ppc64le.rpm kernel-headers-3.10.0-693.43.1.el7.ppc64le.rpm kernel-tools-3.10.0-693.43.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-693.43.1.el7.ppc64le.rpm perf-3.10.0-693.43.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm python-perf-3.10.0-693.43.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm s390x: kernel-3.10.0-693.43.1.el7.s390x.rpm kernel-debug-3.10.0-693.43.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-693.43.1.el7.s390x.rpm kernel-debug-devel-3.10.0-693.43.1.el7.s390x.rpm kernel-debuginfo-3.10.0-693.43.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-693.43.1.el7.s390x.rpm kernel-devel-3.10.0-693.43.1.el7.s390x.rpm kernel-headers-3.10.0-693.43.1.el7.s390x.rpm kernel-kdump-3.10.0-693.43.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-693.43.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-693.43.1.el7.s390x.rpm perf-3.10.0-693.43.1.el7.s390x.rpm perf-debuginfo-3.10.0-693.43.1.el7.s390x.rpm python-perf-3.10.0-693.43.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.s390x.rpm x86_64: kernel-3.10.0-693.43.1.el7.x86_64.rpm kernel-debug-3.10.0-693.43.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.43.1.el7.x86_64.rpm kernel-devel-3.10.0-693.43.1.el7.x86_64.rpm kernel-headers-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.43.1.el7.x86_64.rpm perf-3.10.0-693.43.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm python-perf-3.10.0-693.43.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional EUS (v. 7.4): ppc64: kernel-debug-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.43.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-693.43.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.ppc64.rpm ppc64le: kernel-debug-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-693.43.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.43.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-693.43.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.43.1.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.43.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.43.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.43.1.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-2017-18344 https://access.redhat.com/security/cve/CVE-2018-5391 https://access.redhat.com/security/cve/CVE-2018-10675 https://access.redhat.com/security/cve/CVE-2018-14634 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/3553061 https://access.redhat.com/security/vulnerabilities/mutagen-astronomy https://access.redhat.com/articles/3684891 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 iQIVAwUBW+r9CNzjgjWX9erEAQgdxxAAjJjKly4BFxBrDknNRWpm8wKXis8KW+xN n97vF/PY1t6v37iOFRkrYfRZ9jBAWCDGfozmPuxeIkeIYlJOuryqejIaGzokr612 AkNI4+SDKANGazB7btlFw5CyA6wQUNWNUyLc2MYMa5+x2tNKwZF3vjpve0zHxmcI Fb6gwqlyQUg6Erpnvacpve329kqFB765Kd+sYA9Gb4vylR8+srH6jVJIHPBwEQ33 8TrpABbevLSt0mxw4aUbiPdaxtgkYwMbL8T+kvW/pji3+QbiOP2oqEeRLXVChaoM +WzFXkNQW6EvI/3PinrH2BVQf7JvF7VQxTP6hNaaBnOyVaT74qhb41Mh2Q75kICs q8le6tYgNe6kDffCWryRYd96XsGXIKUqi5XuaQKAh+PL8Fynp3AnHSWlXjm5vD87 JDYB5SzoGJyJkvNkyr8AT6oW3BjW77mSU6R20YvLlW1olprZ0saH7Ew7V2b0+Hwi dO7anqxQvaeskZvJQIkCAI1OCGY5XyV/EeNWN5ci9RpG0iPBJYKOW3zCFRjTGoCj 2iVIKGiLjpNtz1VlMu/5vPgxLlzOtZdk7AisG90vFZQkvj/y1Nbv6yZlJfbODJOe fUcFo3nFiVyq2eY2xWlGgN3ydYtXCGFgKzD+uYrHz8Qgc5R5KhEbGvnL0PIpjWV/ qd7daECXD90= =F2Xx - -----END PGP SIGNATURE----- - -------------------------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2018:3586-01 Product: Red Hat Enterprise MRG for RHEL-6 Advisory URL: https://access.redhat.com/errata/RHSA-2018:3586 Issue date: 2018-11-13 CVE Names: CVE-2017-18344 CVE-2018-5391 CVE-2018-10675 CVE-2018-14634 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise MRG 2. 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 MRG Realtime for RHEL 6 Server v.2 - 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): * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) * kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c (CVE-2017-18344) * kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact (CVE-2018-10675) * kernel: Integer overflow in Linux's create_elf_tables function (CVE-2018-14634) 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 Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391 and Qualys Research Labs for reporting CVE-2018-14634. Bug Fix(es): * The kernel-rt packages have been upgraded to the 3.10.0-693.43.1 source tree, which provides a number of bug fixes over the previous version. (BZ#1632422) 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/): 1575065 - CVE-2018-10675 kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact 1609664 - CVE-2018-5391 kernel: IP fragments with random offsets allow a remote denial of service (FragmentSmack) 1610958 - CVE-2017-18344 kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c 1624498 - CVE-2018-14634 kernel: Integer overflow in Linux's create_elf_tables function 6. Package List: Red Hat MRG Realtime for RHEL 6 Server v.2: Source: kernel-rt-3.10.0-693.43.1.rt56.630.el6rt.src.rpm noarch: kernel-rt-doc-3.10.0-693.43.1.rt56.630.el6rt.noarch.rpm kernel-rt-firmware-3.10.0-693.43.1.rt56.630.el6rt.noarch.rpm x86_64: kernel-rt-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debug-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-devel-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-trace-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-vanilla-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-vanilla-debuginfo-3.10.0-693.43.1.rt56.630.el6rt.x86_64.rpm kernel-rt-vanilla-devel-3.10.0-693.43.1.rt56.630.el6rt.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-2017-18344 https://access.redhat.com/security/cve/CVE-2018-5391 https://access.redhat.com/security/cve/CVE-2018-10675 https://access.redhat.com/security/cve/CVE-2018-14634 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/3553061 https://access.redhat.com/security/vulnerabilities/mutagen-astronomy 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 iQIVAwUBW+r8XNzjgjWX9erEAQh7Wg/9EnXBgWt4HJejvNHpoICqNwn0cf8QvFJH UUluUQ2xiCEZyWQpNoPKpB1q5JqrjNEJeFdm4ip1BPuBs94LVSFQWec9XFTUVJIe xoSRpcTlxrOzBQxJF0xaSTWAHiVzKeljGDKdONZKmu3zOxLciEZl0wcRG5IX+MoD gtUA74Fjm+JHlEeyf/Bn6rHFsXZJ3d5ApeUJdcG3s2AZrWn/UJ+HM9vZATOsJbcH 6wGJGW7RxVzD4TE9hO6Gy6rZIpEZ17xtfD1P85gy1tvMToUZOfs91TE+027dlaca D5s9ouwLfc0QA2frWp2MvR0LOSbVR/quQ95nI8oHSzDjYKyz2n0mgvgRR1qDuY1i j7PaaZw4ETDkq2uGIQEPTIk91gfRVlasY/ZISTB1zgCV50cAd6bPVMEFi/6bOf7C dPWjGqVpG2z/YrCIMu0xsZ189WAfsW72GrLRAK40QVsZUF1+CHymQ5XSUTzQjYbh uJUhVEU/Z1ADtIa4mCoo1Ll35rqr+qDiuQcfg4GM4sTpehJxAlqbvD4ikTtWJXNl 4tvu+1I6UIevwEdbaPBFe1O+xuWdjgBIGManw1RP5cGtua5CwmVv+feMRHPBJZ6l aVjOkouy1AXRhS3BBqjTcMdPXwSI9ccu+CioDxdtoQPbI5p26TUc0BZwffjs/TpA fHRwYbJQ6as= =bv4i - -----END PGP SIGNATURE----- - -------------------------------------------------------------------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2018:3590-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:3590 Issue date: 2018-11-13 CVE Names: CVE-2017-18344 CVE-2018-5391 CVE-2018-10675 CVE-2018-14634 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions. 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 AUS (v. 7.2) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.2) - noarch, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.2) - noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * A flaw named FragmentSmack was found in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker could use this flaw to trigger time and calculation expensive fragment reassembly algorithm by sending specially crafted packets which could lead to a CPU saturation and hence a denial of service on the system. (CVE-2018-5391) * kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c (CVE-2017-18344) * kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact (CVE-2018-10675) * kernel: Integer overflow in Linux's create_elf_tables function (CVE-2018-14634) 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 Juha-Matti Tilli (Aalto University - Department of Communications and Networking and Nokia Bell Labs) for reporting CVE-2018-5391 and Qualys Research Labs for reporting CVE-2018-14634. Bug Fix(es): * Previously, a kernel panic occurred when the kernel tried to make an out of bound access to the array that describes the L1 Terminal Fault (L1TF) mitigation state on systems without Extended Page Tables (EPT) support. This update extends the array of mitigation states to cover all the states, which effectively prevents out of bound array access. Also, this update enables rejecting invalid, irrelevant values, that might be erroneously provided by the userspace. As a result, the kernel no longer panics in the described scenario. (BZ#1629565) * Previously, a packet was missing the User Datagram Protocol (UDP) payload checksum during a full checksum computation, if the hardware checksum was not applied. As a consequence, a packet with an incorrect checksum was dropped by a peer. With this update, the kernel includes the UDP payload checksum during the full checksum computation. As a result, the checksum is computed correctly and the packet can be received by the peer. (BZ#1635792) * Previously, a transform lookup through the xfrm framework could be performed on an already transformed destination cache entry (dst_entry). When using User Datagram Protocol (UDP) over IPv6 with a connected socket in conjunction with Internet Protocol Security (IPsec) in Encapsulating Security Payload (ESP) transport mode. As a consequence, invalid IPv6 fragments transmitted from the host or the kernel occasionally terminated unexpectedly due to a socket buffer (SKB) underrun. With this update, the xfrm lookup on an already transformed dst_entry is not possible. As a result, using UDP iperf utility over IPv6 ESP no longer causes invalid IPv6 fragment transmissions or a kernel panic. (BZ#1639586) 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/): 1575065 - CVE-2018-10675 kernel: mm: use-after-free in do_get_mempolicy function allows local DoS or other unspecified impact 1609664 - CVE-2018-5391 kernel: IP fragments with random offsets allow a remote denial of service (FragmentSmack) 1610958 - CVE-2017-18344 kernel: out-of-bounds access in the show_timer function in kernel/time/posix-timers.c 1624498 - CVE-2018-14634 kernel: Integer overflow in Linux's create_elf_tables function 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.2): Source: kernel-3.10.0-327.76.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.76.1.el7.noarch.rpm kernel-doc-3.10.0-327.76.1.el7.noarch.rpm x86_64: kernel-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.76.1.el7.x86_64.rpm kernel-devel-3.10.0-327.76.1.el7.x86_64.rpm kernel-headers-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.76.1.el7.x86_64.rpm perf-3.10.0-327.76.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm python-perf-3.10.0-327.76.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.2): Source: kernel-3.10.0-327.76.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.76.1.el7.noarch.rpm kernel-doc-3.10.0-327.76.1.el7.noarch.rpm x86_64: kernel-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.76.1.el7.x86_64.rpm kernel-devel-3.10.0-327.76.1.el7.x86_64.rpm kernel-headers-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.76.1.el7.x86_64.rpm perf-3.10.0-327.76.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm python-perf-3.10.0-327.76.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.2): Source: kernel-3.10.0-327.76.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-327.76.1.el7.noarch.rpm kernel-doc-3.10.0-327.76.1.el7.noarch.rpm x86_64: kernel-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.76.1.el7.x86_64.rpm kernel-devel-3.10.0-327.76.1.el7.x86_64.rpm kernel-headers-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-327.76.1.el7.x86_64.rpm perf-3.10.0-327.76.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm python-perf-3.10.0-327.76.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.76.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.76.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.2): x86_64: kernel-debug-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-327.76.1.el7.x86_64.rpm perf-debuginfo-3.10.0-327.76.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-327.76.1.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-2017-18344 https://access.redhat.com/security/cve/CVE-2018-5391 https://access.redhat.com/security/cve/CVE-2018-10675 https://access.redhat.com/security/cve/CVE-2018-14634 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/3553061 https://access.redhat.com/security/vulnerabilities/mutagen-astronomy 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 iQIVAwUBW+sPDtzjgjWX9erEAQhm3BAAhxwzb8zJTfl0zFY/r9KUzkAdLXY4w39X BgJrVPyl7f6krvQ17HE95Poqz/iUhMOZAweypQXHMRKkmfMTYiLHlKpdIusou2xy y1ZzB1uloI4j2zMdTDRP5yZz06r/NP5A05pLZDA02iR5b07ALLYb5hcL5oBnpQXp 9Xp31qb7TCP+jWtCO1Ot+9GJ3chMNvpYqH0OkGTpq/G7PxGrhIzB6v4p6N5OntD9 5CIebREaGBWn9ViWiUHcthgg+PN2iS2/5ST82g/Jss/WmVVZSiVbayob6/MNQPnb M29VHOmJ6pf5dERNpSqrJrBXeDYCMA6HHD+RT9SmiuQQ8gQ2Rzjy7K97Nn++6x7O nclOTmB7hQZtl0WhgC3xuwtslXGpe9jKSzql03ijTvJRQrczgVWiBS+tpfVAJprV ma2Kchf5ivctaXZ/R62JMyTvNf6HCVdvBNvSNET52ol3PkdpJK7V7mg+H64Mqdrl cBTUDBHHYYWMJted9pHWq7tPs0vy1h9aoFqNdlak5jwr169vldlZMRBbhtvz+OXj V/o+IClbY9UUfibaXDoX7qufeVikW1KQ4L+VhRj3RzXNsu2A8FUAcN7za5Qv5HIe LiC42C+pjvHqS/9gNpBakzKv6nPldWZIfPEuF4zewizBxlTXHPE1ln1hAWKjqVTs 6QJ1Zh7jeUY= =8JOQ - -----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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