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openSUSE Leap 15.4: gnutls Important Heap Overflow Fix 2025:02589-1

opensuse
Calendar Grey August 1, 2025
Dist Opensuse Esm H88
An important security patch for gnutls in openSUSE resolves various issues, enhancing your system's protection.
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 gnutls OpenSUSE heap overread

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 15.4

zypper in -t patch SUSE-2025-2589=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2025-2589=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2025-2589=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2025-2589=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-2589=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-2589=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-2589=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch...

Read the Full Advisory

Package List

* openSUSE Leap 15.4 (aarch64 ppc64le s390x x86_64 i586)

* gnutls-debugsource-3.7.3-150400.4.50.1

* libgnutls30-hmac-3.7.3-150400.4.50.1

* libgnutls30-debuginfo-3.7.3-150400.4.50.1

* gnutls-guile-debuginfo-3.7.3-150400.4.50.1

* libgnutls-devel-3.7.3-150400.4.50.1

* libgnutlsxx-devel-3.7.3-150400.4.50.1

* libgnutlsxx28-3.7.3-150400.4.50.1

* gnutls-debuginfo-3.7.3-150400.4.50.1

* gnutls-guile-3.7.3-150400.4.50.1

* libgnutls30-3.7.3-150400.4.50.1

* gnutls-3.7.3-150400.4.50.1

* libgnutlsxx28-debuginfo-3.7.3-150400.4.50.1

* openSUSE Leap 15.4 (x86_64)

* libgnutls-devel-32bit-3.7.3-150400.4.50.1

* libgnutls30-32bit-debuginfo-3.7.3-150400.4.50.1

* libgnutls30-hmac-32bit-3.7.3-150400.4.50.1

* libgnutls30-32bit-3.7.3-150400.4.50.1

* openSUSE Leap 15.4 (aarch64_ilp32)

* libgnutls30-64bit-debuginfo-3.7.3-150400.4.50.1

* libgnutls-devel-64bit-3.7.3-150400.4.50.1

* libgnutls30-hmac-64bit-3.7.3-150400.4.50.1

* libgnutls30-64bit-3.7.3-150400.4.50.1

* SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 s390x x86_64)

*...

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-2025:02589-1
Release Date: 2025-08-01T13:06:32Z
Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Manager Proxy 4.3 * SUSE Manager Retail Branch Server 4.3 * SUSE Manager Server 4.3

Topics%20covered

Topics Covered

security advisory buffer overflow important gnutls OpenSUSE heap overread

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