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openSUSE Leap 15.5: StrongSwan Important Buffer Overflow CVE-2025-62291

opensuse
Calendar Grey October 30, 2025
Dist Opensuse Esm H88
A critical update for strongswan in openSUSE resolves a buffer overflow with an important security rating. Install promptly.
An update that solves one vulnerability can now be installed.

Description

This update for strongswan fixes the following issues:

* CVE-2025-62291: fixed a buffer overflow when handling EAP-MSCHAPv2 failure

requests (bsc#1251941)

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE strongSwan cve-2025-62291

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:

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-3873=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-3873=1

* SUSE Linux Enterprise Server 15 SP5 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-3873=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP5

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2025-3873=1

* openSUSE Leap 15.5

zypper in -t patch SUSE-2025-3873=1

Package List

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64

x86_64)

* strongswan-ipsec-5.9.11-150500.5.9.1

* strongswan-ipsec-debuginfo-5.9.11-150500.5.9.1

* strongswan-libs0-5.9.11-150500.5.9.1

* strongswan-hmac-5.9.11-150500.5.9.1

* strongswan-debugsource-5.9.11-150500.5.9.1

* strongswan-libs0-debuginfo-5.9.11-150500.5.9.1

* strongswan-debuginfo-5.9.11-150500.5.9.1

* strongswan-5.9.11-150500.5.9.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (noarch)

* strongswan-doc-5.9.11-150500.5.9.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64

x86_64)

* strongswan-ipsec-5.9.11-150500.5.9.1

* strongswan-ipsec-debuginfo-5.9.11-150500.5.9.1

* strongswan-libs0-5.9.11-150500.5.9.1

* strongswan-hmac-5.9.11-150500.5.9.1

* strongswan-debugsource-5.9.11-150500.5.9.1

* strongswan-libs0-debuginfo-5.9.11-150500.5.9.1

* strongswan-debuginfo-5.9.11-150500.5.9.1

* strongswan-5.9.11-150500.5.9.1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (noarch)

*...

Read the Full Advisory

References

* bsc#1251941

## References:

* https://www.suse.com/security/cve/CVE-2025-62291.html

* https://bugzilla.suse.com/show_bug.cgi?id=1251941

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:3873-1
Release Date: 2025-10-30T15:10:55Z
Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP5

Topics%20covered

Topics Covered

security advisory buffer overflow important OpenSUSE strongSwan cve-2025-62291

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