-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kpatch-patch security update Advisory ID: RHSA-2022:0849-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2022:0849 Issue date: 2022-03-14 CVE Names: CVE-2021-0920 CVE-2021-4154 CVE-2022-0330 CVE-2022-0435 CVE-2022-0492 CVE-2022-22942 ===================================================================== 1. Summary: An update for kpatch-patch is now available for Red Hat Enterprise Linux 8. 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 BaseOS (v. 8) - ppc64le, x86_64 3. Description: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fix(es): * kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920) * kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154) * kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330) * kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435) * kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492) * kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942) 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 the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 2031930 - CVE-2021-0920 kernel: Use After Free in unix_gc() which could result in a local privilege escalation 2034514 - CVE-2021-4154 kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout 2042404 - CVE-2022-0330 kernel: possible privileges escalation due to missing TLB flush 2044809 - CVE-2022-22942 kernel: failing usercopy allows for use-after-free exploitation 2048738 - CVE-2022-0435 kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS 2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation 6. Package List: Red Hat Enterprise Linux BaseOS (v. 8): Source: kpatch-patch-4_18_0-348-1-3.el8.src.rpm kpatch-patch-4_18_0-348_12_2-1-1.el8_5.src.rpm kpatch-patch-4_18_0-348_2_1-1-2.el8_5.src.rpm kpatch-patch-4_18_0-348_7_1-1-2.el8_5.src.rpm ppc64le: kpatch-patch-4_18_0-348-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-348-debuginfo-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-348-debugsource-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-debuginfo-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_12_2-debugsource-1-1.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-debuginfo-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_2_1-debugsource-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-debuginfo-1-2.el8_5.ppc64le.rpm kpatch-patch-4_18_0-348_7_1-debugsource-1-2.el8_5.ppc64le.rpm x86_64: kpatch-patch-4_18_0-348-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-348-debuginfo-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-348-debugsource-1-3.el8.x86_64.rpm kpatch-patch-4_18_0-348_12_2-1-1.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_12_2-debuginfo-1-1.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_12_2-debugsource-1-1.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_2_1-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_2_1-debuginfo-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_2_1-debugsource-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_7_1-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_7_1-debuginfo-1-2.el8_5.x86_64.rpm kpatch-patch-4_18_0-348_7_1-debugsource-1-2.el8_5.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-2021-0920 https://access.redhat.com/security/cve/CVE-2021-4154 https://access.redhat.com/security/cve/CVE-2022-0330 https://access.redhat.com/security/cve/CVE-2022-0435 https://access.redhat.com/security/cve/CVE-2022-0492 https://access.redhat.com/security/cve/CVE-2022-22942 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 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYi9au9zjgjWX9erEAQgGVhAAkbIdgkZC/WmuPvvMmctl0HXJULu0w9qt 5353up1M2KUJ6IaSmU6t6zEhpQbC5aMsbK43irRx76/+P4s241zXW4UN567AO+Oy 4X5PDcimJPOrwICT4Hk8/eLerWqL2/DiQIONnszP5GYzvyj1PItvFJN+n7TFGCzH aQweB0/kM8nsbR5cvVGU9x92p4aSLgzabhMof4HgDwlLFDRXtqZUonscaVU8l1aD BifkU9K/vHxeKld2Jzb2wi9oecESjWpeNtw+G8/wsF1NAQsDxlKSQ5+WxFnMibTX RWs/B6FeCth1lO2OSmLnFirbcMtfLgSSmpYnVX6wPKDRMzmkcq9gZHTx28jc2D82 6HJTjroDQERHX4SoNyfVON8xgI2llng0Na3eZw8h90aY5zNZ7+V1VQNjEBqZgOUa IzEScXSA/F8qk+uCtHBlIxx+QidrDeLEqNEiZ9qX6KG0+IwQhxVae/wRgOOHnptF j2hS72Rn5v8h1NHg3zOeRQYeEYZbqKlGdiLaJJaiwQIOzeWhdB0eFKB9IChchpjw KEzUEtN3I1blNEuxysOr1flQ7mFe4l/R13fHLMGEYyFqV2Jfds6SD4EfpMreq2Ga fATI9mfAa7rhRElvGOL3DbFUW86XuSqxOSJ0TX8q2sZ34bgAm5qSwJNyQgHpyteQ ErkNJXLBb0s= =YVSY -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce