Memory leak in Lasso - CVE-2025-46784

Vulnerability identifier: #VU118157

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-2025-46784

CWE-ID: CWE-401

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the lasso_node_init_from_message_with_format functionality. A remote attacker can force the application to leak memory and perform denial of service attack.

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

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
liblasso3 - addressed in versions 2.6.1-8.12.1, 2.6.1-150200.24.1
liblasso-devel - addressed in versions 2.6.1-8.12.1, 2.6.1-150200.24.1
lasso-debugsource - update to 2.6.1-150200.24.1
liblasso3-debuginfo - update to 2.6.1-150200.24.1
python3-lasso-debuginfo - update to 2.6.1-150200.24.1
lasso-debuginfo - update to 2.6.1-150200.24.1
python3-lasso - update to 2.7.0-2
perl-lasso - update to 2.7.0-2
lasso-help - update to 2.7.0-2
lasso-devel - update to 2.7.0-2
lasso-debugsource - update to 2.7.0-2
lasso-debuginfo - update to 2.7.0-2
java-lasso - update to 2.7.0-2
lasso - update to 2.7.0-2
lasso (Ubuntu package) - addressed in versions 2.7.0-2ubuntu0.1, 2.8.2-2ubuntu0.1, 2.8.2-8ubuntu0.1

• https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2195

• Multiple vulnerabilities in Entrouvert Lasso
• SUSE update for lasso
• SUSE update for lasso
• openEuler 22.03 LTS SP3 update for lasso
• openEuler 22.03 LTS SP4 update for lasso
• Ubuntu update for lasso