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SUSE: 2023:4141-1 Critical Patch for Grub2 Out-Of-Bounds Vulnerability

suse
Calendar Grey October 20, 2023
Dist Suse Esm H88
Essential security patches for grub2 tackling significant vulnerabilities and various improvements for openSUSE infrastructure.
* bsc#1201300 * bsc#1215935 * bsc#1215936 Cross-References:

Summary

## This update for grub2 fixes the following issues: Security fixes: \- CVE-2023-4692: Fixed an out-of-bounds write at fs/ntfs.c which may lead to unsigned code execution. (bsc#1215935) \- CVE-2023-4693: Fixed an out-of-bounds read at fs/ntfs.c which may lead to leak sensitive information. (bsc#1215936) Other fixes: \- Fix a boot delay issue in PowerPC PXE boot (bsc#1201300) ## Patch Instructions: To install this SUSE 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 Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2023-4141=1 * Basesystem Module 15-SP5 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2023-4141=1 * Server Applications Module 15-SP5

Topics%20covered

Topics Covered

security advisory security update critical fix SUSE exploit mitigation out-of-bounds grub2

References

* bsc#1201300

* bsc#1215935

* bsc#1215936

Cross-

* CVE-2023-4692

* CVE-2023-4693

CVSS scores:

* CVE-2023-4692 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2023-4693 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Products:

* Basesystem Module 15-SP5

* Server Applications Module 15-SP5

* SUSE Linux Enterprise Desktop 15 SP5

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise Micro 5.5

* SUSE Linux Enterprise Real Time 15 SP5

* SUSE Linux Enterprise Server 15 SP5

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

An update that solves two vulnerabilities and has one security fix can now be

installed.

##

* https://www.suse.com/security/cve/CVE-2023-4692.html

* https://www.suse.com/security/cve/CVE-2023-4693.html

Severity
critical
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4141-1
Rating: important

Topics%20covered

Topics Covered

security advisory security update critical fix SUSE exploit mitigation out-of-bounds grub2

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