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SUSE: Critical Security Update for gnutls CVE-2025-32988 Vulnerabilities

suse
Calendar Grey August 1, 2025
Dist Suse Esm H88
Important security patch for OpenSSL resolving several weaknesses in Ubuntu Linux distributions. Ensure your devices are secure.
* bsc#1246232 * bsc#1246233 * bsc#1246267 * bsc#1246299

Summary

## This update for gnutls fixes the following issues: * CVE-2025-6395: Fix NULL pointer dereference when 2nd Client Hello omits PSK (bsc#1246299) * CVE-2025-32988: Fix double-free due to incorrect ownership handling in the export logic of SAN entries containing an otherName (bsc#1246232) * CVE-2025-32989: Fix heap buffer overread when handling the CT SCT extension during X.509 certificate parsing (bsc#1246233) * CVE-2025-32990: Fix 1-byte heap buffer overflow when parsing templates with certtool (bsc#1246267) ## 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: * openSUSE Leap 15.6 zypper in -t patch SUSE-2025-2595=1 openSUSE-SLE-15.6-2025-2595=1

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important gnutls heap overread

References

* bsc#1246232

* bsc#1246233

* bsc#1246267

* bsc#1246299

Cross-

* CVE-2025-32988

* CVE-2025-32989

* CVE-2025-32990

* CVE-2025-6395

CVSS scores:

* CVE-2025-32988 ( SUSE ): 9.2

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

* CVE-2025-32988 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2025-32988 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

* CVE-2025-32989 ( SUSE ): 8.3

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

* CVE-2025-32989 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

* CVE-2025-32989 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

* CVE-2025-32990 ( SUSE ): 4.8

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:02595-1
Release Date: 2025-08-01T15:14:08Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important gnutls heap overread

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