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SUSE: 2023:4085-1 Critical Updates: Grub2 Out-Of-Bounds Vulnerability Fixes

suse
Calendar Grey October 16, 2023
Dist Suse Esm H88
SUSE Security Update addresses important vulnerabilities in Grub2 with necessary fixes.
* #1204563 * #1215382 * #1215935 * #1215936

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 'command not found' error of grub2-once (bsc#1204563, bsc#1215382) ## 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 High Performance Computing 12 SP5 zypper in -t patch SUSE-SLE-SERVER-12-SP5-2023-4085=1 * SUSE Linux Enterprise Server 12 SP5 zypper in -t patch SUSE-SLE-SERVER-12-SP5-2023-4085=1

Topics%20covered

Topics Covered

security advisory information leak code execution SUSE out-of-bounds grub2

References

* #1204563

* #1215382

* #1215935

* #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:

* SUSE Linux Enterprise High Performance Computing 12 SP5

* SUSE Linux Enterprise Server 12 SP5

* SUSE Linux Enterprise Server for SAP Applications 12 SP5

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

installed.

##

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

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

* https://bugzilla.suse.com/show_bug.cgi?id=1204563

* https://bugzilla.suse.com/show_bug.cgi?id=1215382

* https://bugzilla.suse.com/show_bug.cgi?id=1215935

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2023:4085-1
Rating: important

Topics%20covered

Topics Covered

security advisory information leak code execution SUSE out-of-bounds grub2

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