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SUSE Linux Enterprise gnutls Important Update Advisories 2026-2367-1

suse
Calendar Grey June 11, 2026
Dist Suse Esm H88
A critical update is available to address four important security issues in gnutls, enhancing system protection for SUSE users.
An update that solves four vulnerabilities can now be installed.

Summary

## This update for gnutls fixes the following issues * CVE-2026-33845: buffers: switch from end_offset over to frag_length (bsc#1263704). * CVE-2026-33846: buffers: add more checks to DTLS reassembly (bsc#1263705). * CVE-2026-42009: lib/buffers: ensure packets have differing sequence numbers (bsc#1263708). ## 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 12 SP5 LTSS zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2367=1 * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2367=1 ## Package List:

Topics%20covered

Topics Covered

security advisory security issue buffer overflow SuSE important gnutls

References

* bsc#1263704

* bsc#1263705

* bsc#1263708

Cross-

* CVE-2025-9820

* CVE-2026-33845

* CVE-2026-33846

* CVE-2026-42009

CVSS scores:

* CVE-2025-9820 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2025-9820 ( NVD ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-33845 ( SUSE ): 8.8

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

* CVE-2026-33845 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2026-33845 ( NVD ): 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

* CVE-2026-33845 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-33846 ( 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-2026-33846 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2367-1
Release Date: 2026-06-11T09:12:53Z
Rating: important

Topics%20covered

Topics Covered

security advisory security issue buffer overflow SuSE important gnutls

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