NULL pointer dereference in Lasso - CVE-2025-46404

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Main Vulnerability Database Vulnerabilities #VU118160

NULL pointer dereference in Lasso - CVE-2025-46404

Published: November 6, 2025


Vulnerability identifier: #VU118160
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-46404
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the lasso_provider_verify_saml_signature functionality. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


Affected software

Lasso
Debian Linux
SUSE Manager Server 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Proxy 4.3
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Enterprise Storage
Server Applications Module
SUSE Package Hub 15
openSUSE Leap
openEuler
Ubuntu
python3-lasso
liblasso3
liblasso-devel
liblasso3-debuginfo
python3-lasso-debuginfo
lasso-debugsource
lasso-debuginfo
lasso-devel
lasso-help
perl-lasso
java-lasso
lasso
lasso (Ubuntu package)
lasso (Debian package)

How to mitigate CVE-2025-46404

Install updates from vendor's website.

Lasso - update to 2.6.0
python3-lasso - addressed in versions 2.6.1-8.12.1, 2.6.1-150200.24.1, 2.8.2-150600.3.5.1
liblasso3 - addressed in versions 2.6.1-8.12.1, 2.6.1-150200.24.1, 2.8.2-150600.3.5.1
liblasso-devel - addressed in versions 2.6.1-8.12.1, 2.6.1-150200.24.1, 2.8.2-150600.3.5.1
liblasso3-debuginfo - addressed in versions 2.6.1-150200.24.1, 2.8.2-150600.3.5.1
python3-lasso-debuginfo - addressed in versions 2.6.1-150200.24.1, 2.8.2-150600.3.5.1
lasso-debugsource - addressed in versions 2.6.1-150200.24.1, 2.8.2-150600.3.5.1
lasso-debuginfo - addressed in versions 2.6.1-150200.24.1, 2.8.2-150600.3.5.1
lasso-debuginfo - addressed in versions 2.7.0-2, 2.8.2-3
lasso-debugsource - addressed in versions 2.7.0-2, 2.8.2-3
lasso-devel - addressed in versions 2.7.0-2, 2.8.2-3
lasso-help - addressed in versions 2.7.0-2, 2.8.2-3
perl-lasso - addressed in versions 2.7.0-2, 2.8.2-3
python3-lasso - addressed in versions 2.7.0-2, 2.8.2-3
java-lasso - update to 2.7.0-2
lasso - addressed in versions 2.7.0-2, 2.8.2-3
lasso (Ubuntu package) - addressed in versions 2.7.0-2ubuntu0.1, 2.8.2-2ubuntu0.1, 2.8.2-8ubuntu0.1
lasso (Debian package) - addressed in versions 2.8.1-1+deb12u1, 2.8.2-9+deb13u1

External References

Related Security Bulletins