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SUSE: 2022:4302-1 Important: Grub2 Buffer Overflow and Underflow

suse
Calendar Grey December 1, 2022
Dist Suse Esm H88
Critical vulnerabilities addressed in grub2 enhance security by fixing potential buffer overflow and integer underflow risks in SUSE environments.
An update that solves two vulnerabilities and has two fixes 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 - Fix unreadable filesystem with xfs v4 superblock (bsc#1205520). - Remove zfs modules (bsc#1205554). 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 OpenStack Cloud Crowbar 9: zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2022-4302=1 - SUSE OpenStack Cloud 9: zypper in -t patch SUSE-OpenStack-Cloud-9-2022-4302=1 - SUSE Linux Enterprise Server for SAP 12-SP4:

Topics%20covered

Topics Covered

security advisory buffer overflow SUSE Linux integer underflow grub2 update

References

#1205178 #1205182 #1205520 #1205554

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 Linux Enterprise Server 12-SP4-LTSS

SUSE Linux Enterprise Server 12-SP5

SUSE Linux Enterprise Server for SAP 12-SP4

SUSE OpenStack Cloud 9

SUSE OpenStack Cloud Crowbar 9

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

https://bugzilla.suse.com/1205520

https://bugzilla.suse.com/1205554

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:4302-1
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SUSE Linux integer underflow grub2 update

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