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SUSE: 2022:1634-1 Important: Critical Kernel Patch for SLE 15 SP2

suse
Calendar Grey May 10, 2022
Dist Suse Esm H88
A critical patch for the SUSE Linux Kernel resolves several vulnerabilities, enhancing both system stability and overall security.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-150200_24_112 fixes several issues. The following security issues were fixed: - - CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address (bsc#1198133) - CVE-2022-1011: A use-after-free flaw was found in the FUSE filesystem in the way a user triggers write(). This flaw allowed a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. (bsc#1197344) - - CVE-2021-39698: In aio_poll_complete_work of aio.c, there was a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (bsc#1196959) Patch Instructions:

Topics%20covered

Topics Covered

security advisory security update privilege escalation memory corruption kernel patch critical fix SUSE Linux

References

#1196959 #1197344 #1198133

Cross- CVE-2021-39698 CVE-2022-1011 CVE-2022-1158

CVSS scores:

CVE-2021-39698 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2021-39698 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1011 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1011 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-1158 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE Linux Enterprise High Performance Computing 15-SP2

SUSE Linux Enterprise Module for Live Patching 15-SP2

SUSE Linux Enterprise Server 15-SP2

SUSE Linux Enterprise Server for SAP Applications 15-SP2

https://www.suse.com/security/cve/CVE-2021-39698.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:1634-1
Rating: important

Topics%20covered

Topics Covered

security advisory security update privilege escalation memory corruption kernel patch critical fix SUSE Linux

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