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SUSE: 2022:0984-1 Important: Linux Kernel Live Patch For 15 SP3

suse
Calendar Grey March 29, 2022
Dist Suse Esm H88
Crucial SUSE release for Linux Kernel addresses three severe vulnerabilities, encompassing privilege advancements and local exploitations.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-59_37 fixes several issues. The following security issues were fixed: - CVE-2022-25636: Fixed an issue which allowed a local users to gain privileges because of a heap out-of-bounds write in nf_dup_netdev.c, related to nf_tables_offload (bsc#1196299). - CVE-2021-4001: Fixed a race condition when the EBPF map is frozen (bsc#1192990). - CVE-2022-0492: Fixed a privilege escalation related to cgroups v1 release_agent feature, which allowed bypassing namespace isolation unexpectedly (bsc#1195543). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Module for Live Patching 15-SP3:

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch important SUSE

References

#1192991 #1195908 #1196301

Cross- CVE-2021-4001 CVE-2022-0492 CVE-2022-25636

CVSS scores:

CVE-2021-4001 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-0492 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-0492 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-25636 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-25636 (SUSE): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise High Performance Computing 15-SP3

SUSE Linux Enterprise Micro 5.1

SUSE Linux Enterprise Module for Live Patching 15-SP3

SUSE Linux Enterprise Server 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15-SP3

https://www.suse.com/security/cve/CVE-2021-4001.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:0984-1
Rating: important

Topics%20covered

Topics Covered

security advisory privilege escalation kernel patch important SUSE

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