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SUSE: 2022:4218-1 Important: Grub2 Buffer Overflow and Underflow Fix

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Calendar Grey November 25, 2022
Scroller Suse
SUSE has released a critical security patch for grub2 which addresses significant buffer overflow and underflow vulnerabilities affecting its product line.
An update that fixes two vulnerabilities is now available

Summary

This update for grub2 fixes the following issues: - 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 Manager Server 4.1: zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.1-2022-4218=1 - SUSE Manager Retail Branch Server 4.1: zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.1-2022-4218=1 - SUSE Manager Proxy 4.1: zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.1-2022-4218=1

Topics%20covered

Topics Covered

security advisory buffer overflow important integer underflow patch instructions suse linux enterprise 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 Enterprise Storage 7

SUSE Linux Enterprise High Performance Computing 15-SP2-ESPOS

SUSE Linux Enterprise High Performance Computing 15-SP2-LTSS

SUSE Linux Enterprise Server 15-SP2-BCL

SUSE Linux Enterprise Server 15-SP2-LTSS

SUSE Linux Enterprise Server for SAP 15-SP2

SUSE Manager Proxy 4.1

SUSE Manager Retail Branch Server 4.1

SUSE Manager Server 4.1

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-2022:4218-1
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow important integer underflow patch instructions suse linux enterprise grub2

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