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openSUSE 15.6: libssh Moderate Client-Side DoS Exploit 2025:03369-1

opensuse
Calendar Grey September 26, 2025
Dist Opensuse Esm H88
This release addresses two concerning vulnerabilities within libssh, potentially causing client-side Denial of Service attacks and issues with session identifier management.
An update that solves two vulnerabilities can now be installed.

Description

This update for libssh fixes the following issues:

* CVE-2025-8277: memory exhaustion leading to client-side DoS due to improper

memory management when KEX process is repeated with incorrect guesses

(bsc#1249375).

* CVE-2025-8114: NULL pointer dereference when an allocation error happens

during the calculation of the KEX session ID (bsc#1246974).

Topics%20covered

Topics Covered

security advisory moderate null pointer OpenSUSE libssh client-side dos

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:

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-3369=1

* openSUSE Leap 15.6

zypper in -t patch SUSE-2025-3369=1 openSUSE-SLE-15.6-2025-3369=1

* Basesystem Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-3369=1

Package List

* Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)

* libssh-devel-0.9.8-150600.11.6.1

* libssh-debugsource-0.9.8-150600.11.6.1

* libssh-config-0.9.8-150600.11.6.1

* libssh4-0.9.8-150600.11.6.1

* libssh4-debuginfo-0.9.8-150600.11.6.1

* Basesystem Module 15-SP7 (x86_64)

* libssh4-32bit-debuginfo-0.9.8-150600.11.6.1

* libssh4-32bit-0.9.8-150600.11.6.1

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* libssh-devel-0.9.8-150600.11.6.1

* libssh-debugsource-0.9.8-150600.11.6.1

* libssh-config-0.9.8-150600.11.6.1

* libssh4-0.9.8-150600.11.6.1

* libssh4-debuginfo-0.9.8-150600.11.6.1

* openSUSE Leap 15.6 (x86_64)

* libssh4-32bit-debuginfo-0.9.8-150600.11.6.1

* libssh4-32bit-0.9.8-150600.11.6.1

* openSUSE Leap 15.6 (aarch64_ilp32)

* libssh4-64bit-0.9.8-150600.11.6.1

* libssh4-64bit-debuginfo-0.9.8-150600.11.6.1

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

* libssh-devel-0.9.8-150600.11.6.1

* libssh-debugsource-0.9.8-150600.11.6.1

* libssh-config-0.9.8-150600.11.6.1

*...

Read the Full Advisory

References

* bsc#1246974

* bsc#1249375

## References:

* https://www.suse.com/security/cve/CVE-2025-8114.html

* https://www.suse.com/security/cve/CVE-2025-8277.html

* https://bugzilla.suse.com/show_bug.cgi?id=1246974

* https://bugzilla.suse.com/show_bug.cgi?id=1249375

Announcement ID: SUSE-SU-2025:03369-1
Release Date: 2025-09-26T10:54:53Z
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 moderate null pointer OpenSUSE libssh client-side dos

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