Back Linuxsecurity Ubuntu 25.04 Lasso Critical Denial of Service Vulnerabilities USN-7872
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Several security issues were fixed in Lasso. Software Description: - lasso: Liberty Alliance and SAML protocol Library Details: It was discovered that Lasso incorrectly handled certain malformed SAML responses. A remote attacker could possibly use this issue to cause Lasso to crash, resulting in a denial of service. (CVE-2025-46404) It was discovered that Lasso incorrectly handled certain malformed SAML assertion responses. A remote attacker could possibly use this issue to cause Lasso to crash, resulting in a denial of service. (CVE-2025-46705) It was discovered that Lasso incorrectly handled certain malformed SAML responses. A remote attacker could possibly use this issue to cause Lasso to consume memory, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2025-46784)
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Several security issues were fixed in Lasso. Software Description: - lasso: Liberty Alliance and SAML protocol Library Details: It was discovered that Lasso incorrectly handled certain malformed SAML responses. A remote attacker could possibly use this issue to cause Lasso to crash, resulting in a denial of service. (CVE-2025-46404) It was discovered that Lasso incorrectly handled certain malformed SAML assertion responses. A remote attacker could possibly use this issue to cause Lasso to crash, resulting in a denial of service. (CVE-2025-46705) It was discovered that Lasso incorrectly handled certain malformed SAML responses. A remote attacker could possibly use this issue to cause Lasso to consume memory, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2025-46784)
The problem can be corrected by updating your system to the following package versions: Ubuntu 25.04 liblasso-perl 2.8.2-8ubuntu0.1 liblasso3t64 2.8.2-8ubuntu0.1 python3-lasso 2.8.2-8ubuntu0.1 Ubuntu 24.04 LTS liblasso-perl 2.8.2-2ubuntu0.1 liblasso3t64 2.8.2-2ubuntu0.1 python3-lasso 2.8.2-2ubuntu0.1 Ubuntu 22.04 LTS liblasso-perl 2.7.0-2ubuntu0.1 liblasso3 2.7.0-2ubuntu0.1 python3-lasso 2.7.0-2ubuntu0.1 In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions: Ubuntu 25.04 liblasso-perl 2.8.2-8ubuntu0.1 liblasso3t64 2.8.2-8ubuntu0.1 python3-lasso 2.8.2-8ubuntu0.1 Ubuntu 24.04 LTS liblasso-perl 2.8.2-2ubuntu0.1 liblasso3t64 2.8.2-2ubuntu0.1 python3-lasso 2.8.2-2ubuntu0.1 Ubuntu 22.04 LTS liblasso-perl 2.7.0-2ubuntu0.1 liblasso3 2.7.0-2ubuntu0.1 python3-lasso 2.7.0-2ubuntu0.1 In general, a standard system update will make all the necessary changes.
CVE-2025-46404, CVE-2025-46705, CVE-2025-46784, CVE-2025-47151
CVE-2025-46404, CVE-2025-46705, CVE-2025-46784, CVE-2025-47151
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