Stay Secure with the Latest Linux Advisories

security advisoryRed Hatimportant

Red Hat: RHSA-2021-0354-01 Important Kernel-alt Security Update

An update for kernel-alt 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. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: kernel-alt security update Advisory ID: RHSA-2021:0354-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0354 Issue date: 2021-02-02 CVE Names: CVE-2020-1749 CVE-2020-15436 CVE-2020-29661 ==================================================================== 1. Summary: An update for kernel-alt 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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le 3. Description: The kernel-alt packages provide the Linux kernel version 4.x. Security Fix(es): * kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661) * kernel: some ipv6 protocols not encrypted over ipsec tunnel (CVE-2020-1749) * kernel: use-after-free in fs/block_dev.c (CVE-2020-15436) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes thechanges 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/): 1809833 - CVE-2020-1749 kernel: some ipv6 protocols not encrypted over ipsec tunnel 1901168 - CVE-2020-15436 kernel: use-after-free in fs/block_dev.c 1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free 6. Package List: Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v.7): Source: kernel-alt-4.14.0-115.35.1.el7a.src.rpm aarch64: kernel-4.14.0-115.35.1.el7a.aarch64.rpm kernel-debug-4.14.0-115.35.1.el7a.aarch64.rpm kernel-debug-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm kernel-debug-devel-4.14.0-115.35.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.35.1.el7a.aarch64.rpm kernel-devel-4.14.0-115.35.1.el7a.aarch64.rpm kernel-headers-4.14.0-115.35.1.el7a.aarch64.rpm kernel-tools-4.14.0-115.35.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm kernel-tools-libs-4.14.0-115.35.1.el7a.aarch64.rpm perf-4.14.0-115.35.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm python-perf-4.14.0-115.35.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm noarch: kernel-abi-whitelists-4.14.0-115.35.1.el7a.noarch.rpm kernel-doc-4.14.0-115.35.1.el7a.noarch.rpm ppc64le: kernel-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-bootwrapper-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-debug-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-debug-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-devel-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-headers-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-tools-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-tools-libs-4.14.0-115.35.1.el7a.ppc64le.rpm perf-4.14.0-115.35.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm python-perf-4.14.0-115.35.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm s390x: kernel-4.14.0-115.35.1.el7a.s390x.rpm kernel-debug-4.14.0-115.35.1.el7a.s390x.rpm kernel-debug-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm kernel-debug-devel-4.14.0-115.35.1.el7a.s390x.rpm kernel-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm kernel-debuginfo-common-s390x-4.14.0-115.35.1.el7a.s390x.rpm kernel-devel-4.14.0-115.35.1.el7a.s390x.rpm kernel-headers-4.14.0-115.35.1.el7a.s390x.rpm kernel-kdump-4.14.0-115.35.1.el7a.s390x.rpm kernel-kdump-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm kernel-kdump-devel-4.14.0-115.35.1.el7a.s390x.rpm perf-4.14.0-115.35.1.el7a.s390x.rpm perf-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm python-perf-4.14.0-115.35.1.el7a.s390x.rpm python-perf-debuginfo-4.14.0-115.35.1.el7a.s390x.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7): aarch64: kernel-debug-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm kernel-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm kernel-debuginfo-common-aarch64-4.14.0-115.35.1.el7a.aarch64.rpm kernel-tools-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm kernel-tools-libs-devel-4.14.0-115.35.1.el7a.aarch64.rpm perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm python-perf-debuginfo-4.14.0-115.35.1.el7a.aarch64.rpm noarch: kernel-doc-4.14.0-115.35.1.el7a.noarch.rpm ppc64le: kernel-debug-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-debug-devel-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-tools-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm kernel-tools-libs-devel-4.14.0-115.35.1.el7a.ppc64le.rpm perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.rpm python-perf-debuginfo-4.14.0-115.35.1.el7a.ppc64le.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-2020-1749 https://access.redhat.com/security/cve/CVE-2020-15436 https://access.redhat.com/security/cve/CVE-2020-29661 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 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPGv1 iQIVAwUBYBklv9zjgjWX9erEAQhlcw/+NQ7ufPZQm11+4csoOtd5rdGlbTLZLOrD aKgSJSTL/u9XnBC27/E5YOvFkfOy1JNZluTyNc8Sp0rvrgpUcj5rY+2+mKxYNiJH UO6f99E/NwKH8i+JF/u0pkCIP3fLyZQTrvYIC9dTptFjY1wX0Awu2pqTbY3mAKrk yZikTFWsLrPZkseveV/gf7DjaNvXhM+lBvLh/KXM+yXpRkBbU59ZgVFs2SUBbHvk +omPGQqZZGq68hLjwDcYXIwWDDRhMb7UJkfu9LsPzZ3wcq0piAaZwaREHrv8ijr1 lZerw/DnSsoWn41jSu7VdcdIW7Qq+LMucQX+6JrNl2p7L6gFPk7mk2NW4XGW/IIl VBNlzu1G+8qxry4xFe4OHvrAgtEE/mRgpUB6ugODTB3qaRcu5Dp4OoqhZQiny7qe 2qLkcIPlUJnmpKQbovvMwOwUOQIMFNaI1HSLdkDKTHqRz9sr7I7vbXx6bLTFw/mP RlUA+TQSkYsgiwEZmAUcWltLBFuHGbMGaOBCxGcf05YY5qChhyYsMGy2YXfqk9Dw Zle9ohq3cGgByS9uH0Hj7xawHY+FfwAjzjWjDf3kuxuqcUIR/ZKI+cCkEnPOlmki wy4zABXCeK1sjVVKw6oRg5MTrUoSs5M7DU4Z78QoPQL8uyYlh1xki1sAMPa29lls 8k6yFmJCr70=r1ub -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . CentOS Stream 9 receives a vital software patch for its kernel component, addressing severe vulnerabilities that could impact system security.. Red Hat Kernel Update, Important Security Fix, Kernel Security Update. . Severity: Important. LinuxSecurity.com Team

Feb 02, 2021 •Important Red Hat