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SUSE: 2022:0463-1 Critical: Linux Kernel Live Patch Improves Security

suse
Calendar Grey February 17, 2022
Dist Suse Esm H88
Urgent Debian security patch rectifies major flaws in the Linux Kernel. Discover specifics on vulnerabilities and corrective measures.
An update that fixes three vulnerabilities is now available

Summary

This update for the Linux Kernel 5.3.18-59_24 fixes several issues. The following security issues were fixed: - CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194533). - CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195308). - CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1194460). 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 critical race condition suse linux kernel remote overflow live patching

References

#1194460 #1194533 #1195308

Cross- CVE-2021-4083 CVE-2021-4202 CVE-2022-0435

CVSS scores:

CVE-2021-4083 (SUSE): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-4202 (SUSE): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-0435 (SUSE): 8.1 CVSS:3.1/AV:N/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 High Performance Computing 15-SP3

SUSE Linux Enterprise Micro 5.1

SUSE Linux Enterprise Module for Live Patching 15-SP2

SUSE Linux Enterprise Module for Live Patching 15-SP3

SUSE Linux Enterprise Server 15-SP2

SUSE Linux Enterprise Server 15-SP3

SUSE Linux Enterprise Server for SAP Applications 15-SP2

SUSE Linux Enterprise Server for SAP Appl...

Read the Full Advisory

Severity
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Critical

Announcement ID: SUSE-SU-2022:0463-1
Rating: critical

Topics%20covered

Topics Covered

security advisory critical race condition suse linux kernel remote overflow live patching

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