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SUSE: 2022:4142-1 Important: Grub2 Buffer Overflow & Underflow

suse
Calendar Grey November 21, 2022
Dist Suse Esm H88
Essential SUSE security patch for grub2 addresses critical buffer overflow and integer underflow flaws.
An update that fixes two vulnerabilities is now available

Summary

This update for grub2 fixes the following issues: Security Fixes: - CVE-2022-2601: Fixed buffer overflow in grub_font_construct_glyph (bsc#1205178). - CVE-2022-3775: Fixed integer underflow in blit_comb() (bsc#1205182). Other: - Bump upstream SBAT generation to 3 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 Server for SAP 15-SP1: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP1-2022-4142=1 - SUSE Linux Enterprise Server 15-SP1-LTSS: zypper in -t patch SUSE-SLE-Product-SLES-15-SP1-LTSS-2022-4142=1 - SUSE Linux Enterprise Server 15-SP1-BCL:

Topics%20covered

Topics Covered

security advisory buffer overflow SUSE important update integer underflow patch instructions grub2

References

#1205178 #1205182

Cross- CVE-2022-2601 CVE-2022-3775

CVSS scores:

CVE-2022-2601 (SUSE): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CVE-2022-3775 (SUSE): 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Products:

SUSE CaaS Platform 4.0

SUSE Enterprise Storage 6

SUSE Linux Enterprise High Performance Computing 15-SP1-ESPOS

SUSE Linux Enterprise High Performance Computing 15-SP1-LTSS

SUSE Linux Enterprise Server 15-SP1-BCL

SUSE Linux Enterprise Server 15-SP1-LTSS

SUSE Linux Enterprise Server for SAP 15-SP1

https://www.suse.com/security/cve/CVE-2022-2601.html

https://www.suse.com/security/cve/CVE-2022-3775.html

https://bugzilla.suse.com/1205178

https://bugzilla.suse.com/1205182

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:4142-1
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SUSE important update integer underflow patch instructions grub2

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