{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"important"},"category":"csaf_security_advisory","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP2)","title":"Title of the patch"},{"category":"description","text":"This update for the Linux Kernel 5.3.18-24_46 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2020-29373: Fixed an issue where kernel unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations (bsc#1179779).\n- CVE-2020-29569: Fixed a use after free due to a logic error (bsc#1180008).\n- CVE-2020-29368: Fixed an issue in copy-on-write implementation which could grant unintended write access because of a race condition in a THP mapcount check (bsc#1179664).\n","title":"Description of the patch"},{"category":"details","text":"SUSE-2021-359,SUSE-SLE-Module-Live-Patching-15-SP2-2021-359","title":"Patchnames"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"SUSE ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"self","summary":"URL of this CSAF notice","url":"https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_0359-1.json"},{"category":"self","summary":"URL for SUSE-SU-2021:0359-1","url":"https://www.suse.com/support/update/announcement/2021/suse-su-20210359-1/"},{"category":"self","summary":"E-Mail link for SUSE-SU-2021:0359-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2021-February/008297.html"},{"category":"self","summary":"SUSE Bug 1179664","url":"https://bugzilla.suse.com/1179664"},{"category":"self","summary":"SUSE Bug 1179779","url":"https://bugzilla.suse.com/1179779"},{"category":"self","summary":"SUSE Bug 1180008","url":"https://bugzilla.suse.com/1180008"},{"category":"self","summary":"SUSE CVE CVE-2020-29368 page","url":"https://www.suse.com/security/cve/CVE-2020-29368/"},{"category":"self","summary":"SUSE CVE CVE-2020-29373 page","url":"https://www.suse.com/security/cve/CVE-2020-29373/"},{"category":"self","summary":"SUSE CVE CVE-2020-29569 page","url":"https://www.suse.com/security/cve/CVE-2020-29569/"}],"title":"Security update for the Linux Kernel (Live Patch 9 for SLE 15 SP2)","tracking":{"current_release_date":"2021-02-10T10:41:02Z","generator":{"date":"2021-02-10T10:41:02Z","engine":{"name":"cve-database.git:bin/generate-csaf.pl","version":"1"}},"id":"SUSE-SU-2021:0359-1","initial_release_date":"2021-02-10T10:41:02Z","revision_history":[{"date":"2021-02-10T10:41:02Z","number":"1","summary":"Current version"}],"status":"final","version":"1"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_version","name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","product":{"name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","product_id":"kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le"}}],"category":"architecture","name":"ppc64le"},{"branches":[{"category":"product_version","name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","product":{"name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","product_id":"kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x"}}],"category":"architecture","name":"s390x"},{"branches":[{"category":"product_version","name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64","product":{"name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64","product_id":"kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"}},{"category":"product_version","name":"kernel-livepatch-5_3_18-24_46-preempt-2-2.1.x86_64","product":{"name":"kernel-livepatch-5_3_18-24_46-preempt-2-2.1.x86_64","product_id":"kernel-livepatch-5_3_18-24_46-preempt-2-2.1.x86_64"}}],"category":"architecture","name":"x86_64"},{"branches":[{"category":"product_name","name":"SUSE Linux Enterprise Live Patching 15 SP2","product":{"name":"SUSE Linux Enterprise Live Patching 15 SP2","product_id":"SUSE Linux Enterprise Live Patching 15 SP2","product_identification_helper":{"cpe":"cpe:/o:suse:sle-module-live-patching:15:sp2"}}}],"category":"product_family","name":"SUSE Linux Enterprise"}],"category":"vendor","name":"SUSE"}],"relationships":[{"category":"default_component_of","full_product_name":{"name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le as component of SUSE Linux Enterprise Live Patching 15 SP2","product_id":"SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le"},"product_reference":"kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","relates_to_product_reference":"SUSE Linux Enterprise Live Patching 15 SP2"},{"category":"default_component_of","full_product_name":{"name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x as component of SUSE Linux Enterprise Live Patching 15 SP2","product_id":"SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x"},"product_reference":"kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","relates_to_product_reference":"SUSE Linux Enterprise Live Patching 15 SP2"},{"category":"default_component_of","full_product_name":{"name":"kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 15 SP2","product_id":"SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"},"product_reference":"kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64","relates_to_product_reference":"SUSE Linux Enterprise Live Patching 15 SP2"}]},"vulnerabilities":[{"cve":"CVE-2020-29368","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2020-29368"}],"notes":[{"category":"general","text":"An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2020-29368","url":"https://www.suse.com/security/cve/CVE-2020-29368"},{"category":"external","summary":"SUSE Bug 1179428 for CVE-2020-29368","url":"https://bugzilla.suse.com/1179428"},{"category":"external","summary":"SUSE Bug 1179660 for CVE-2020-29368","url":"https://bugzilla.suse.com/1179660"},{"category":"external","summary":"SUSE Bug 1179664 for CVE-2020-29368","url":"https://bugzilla.suse.com/1179664"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":7,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"products":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]}],"threats":[{"category":"impact","date":"2021-02-10T10:41:02Z","details":"important"}],"title":"CVE-2020-29368"},{"cve":"CVE-2020-29373","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2020-29373"}],"notes":[{"category":"general","text":"An issue was discovered in fs/io_uring.c in the Linux kernel before 5.6. It unsafely handles the root directory during path lookups, and thus a process inside a mount namespace can escape to unintended filesystem locations, aka CID-ff002b30181d.","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2020-29373","url":"https://www.suse.com/security/cve/CVE-2020-29373"},{"category":"external","summary":"SUSE Bug 1179434 for CVE-2020-29373","url":"https://bugzilla.suse.com/1179434"},{"category":"external","summary":"SUSE Bug 1179779 for CVE-2020-29373","url":"https://bugzilla.suse.com/1179779"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":7.7,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"products":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]}],"threats":[{"category":"impact","date":"2021-02-10T10:41:02Z","details":"important"}],"title":"CVE-2020-29373"},{"cve":"CVE-2020-29569","ids":[{"system_name":"SUSE CVE Page","text":"https://www.suse.com/security/cve/CVE-2020-29569"}],"notes":[{"category":"general","text":"An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.","title":"CVE description"}],"product_status":{"recommended":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]},"references":[{"category":"external","summary":"CVE-2020-29569","url":"https://www.suse.com/security/cve/CVE-2020-29569"},{"category":"external","summary":"SUSE Bug 1179509 for CVE-2020-29569","url":"https://bugzilla.suse.com/1179509"},{"category":"external","summary":"SUSE Bug 1180008 for CVE-2020-29569","url":"https://bugzilla.suse.com/1180008"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]}],"scores":[{"cvss_v3":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"products":["SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.ppc64le","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.s390x","SUSE Linux Enterprise Live Patching 15 SP2:kernel-livepatch-5_3_18-24_46-default-2-2.1.x86_64"]}],"threats":[{"category":"impact","date":"2021-02-10T10:41:02Z","details":"important"}],"title":"CVE-2020-29569"}]}