Affected: Entr'ouvert Lasso

A denial of service vulnerability exists in the lasso_provider_verify_saml_signature functionality of Entr'ouvert Lasso 2.5.1. A specially crafted SAML response can lead to a denial of service. An attacker can send a malformed SAML response to trigger this vulnerability.

Affected: Ubuntu:22.04:LTS: lasso, Ubuntu:24.04:LTS: lasso

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)

It was discovered that Lasso incorrectly handled certain malformed SAML responses. A remote attacker could use this issue to cause Lasso to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2025-47151)