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openSUSE Leap 15.6: gnutls Important Buffer Overflow Threat 2025:02595-1

opensuse
Calendar Grey August 1, 2025
Dist Opensuse Esm H88
This notification highlights essential revisions for openSUSE's libcurl to rectify significant vulnerabilities influencing security enhancements.
An update that solves four vulnerabilities can now be installed.

Description

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)

Topics%20covered

Topics Covered

security advisory buffer overflow important heap overflow gnutls OpenSUSE

Patch

## 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

* Basesystem Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-2595=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-2595=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* libgnutlsxx30-3.8.3-150600.4.9.1

* gnutls-debugsource-3.8.3-150600.4.9.1

* libgnutls-devel-3.8.3-150600.4.9.1

* libgnutlsxx-devel-3.8.3-150600.4.9.1

* gnutls-debuginfo-3.8.3-150600.4.9.1

* libgnutls30-debuginfo-3.8.3-150600.4.9.1

* libgnutls30-3.8.3-150600.4.9.1

* gnutls-3.8.3-150600.4.9.1

* libgnutlsxx30-debuginfo-3.8.3-150600.4.9.1

* openSUSE Leap 15.6 (x86_64)

* libgnutls30-32bit-3.8.3-150600.4.9.1

* libgnutls-devel-32bit-3.8.3-150600.4.9.1

* libgnutls30-32bit-debuginfo-3.8.3-150600.4.9.1

* openSUSE Leap 15.6 (aarch64_ilp32)

* libgnutls30-64bit-3.8.3-150600.4.9.1

* libgnutls30-64bit-debuginfo-3.8.3-150600.4.9.1

* libgnutls-devel-64bit-3.8.3-150600.4.9.1

* Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)

* libgnutlsxx30-3.8.3-150600.4.9.1

* gnutls-debugsource-3.8.3-150600.4.9.1

* libgnutls-devel-3.8.3-150600.4.9.1

* libgnutlsxx-devel-3.8.3-150600.4.9.1

* gnutls-debuginfo-3.8.3-150600.4.9.1

* libgnutls30-debuginfo-3.8.3-150600.4.9.1

*...

Read the Full Advisory

References

* bsc#1246232

* bsc#1246233

* bsc#1246267

* bsc#1246299

## References:

* https://www.suse.com/security/cve/CVE-2025-32988.html

* https://www.suse.com/security/cve/CVE-2025-32989.html

* https://www.suse.com/security/cve/CVE-2025-32990.html

* https://www.suse.com/security/cve/CVE-2025-6395.html

* https://bugzilla.suse.com/show_bug.cgi?id=1246232

* https://bugzilla.suse.com/show_bug.cgi?id=1246233

* https://bugzilla.suse.com/show_bug.cgi?id=1246267

* https://bugzilla.suse.com/show_bug.cgi?id=1246299

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:02595-1
Release Date: 2025-08-01T15:14:08Z
Affected Products: * Basesystem Module 15-SP6 * Basesystem Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory buffer overflow important heap overflow gnutls OpenSUSE

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