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SUSE gpg2 Important Security Update DoS Buffer Overflow 2026-20195-1

suse
Calendar Grey February 3, 2026
Dist Suse Esm H88
Important security update for gpg2 in SUSE addresses buffer overflow and DoS issues, enhancing overall system stability.
An update that solves two vulnerabilities and has one fix can now be installed.

Summary

## This update for gpg2 fixes the following issues: * CVE-2026-24882: stack-based buffer overflow in TPM2 PKDECRYPT for TPM-backed RSA and ECC keys (bsc#1257396). * CVE-2026-24883: denial of service due to long signature packet length causing parse_signature to return success with sig->data[] set to a NULL value (bsc#1257395). * gpg.fail/filename: GnuPG Accepts Path Separators and Path Traversals in Literal Data "Filename" Field (bsc#1256389). ## 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 Server 16.0 zypper in -t patch SUSE-SLES-16.0-221=1 * SUSE Linux Enterprise Server for SAP Applications 16.0

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important service denial gpg2

References

* bsc#1256389

* bsc#1257395

* bsc#1257396

Cross-

* CVE-2026-24882

* CVE-2026-24883

CVSS scores:

* CVE-2026-24882 ( SUSE ): 8.5

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-24882 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-24882 ( NVD ): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-24883 ( SUSE ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2026-24883 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-24883 ( NVD ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected Products:

* SUSE Linux Enterprise Server 16.0

* SUSE Linux Enterprise Server for SAP Applications 16.0

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

##

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:20195-1
Release Date: 2026-01-29T16:14:38Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important service denial gpg2

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