A denial of service vulnerability exists in the lasso_provider_verify_saml_signature functionality of Entr&#39;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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1285 advisory.

    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. (CVE-2025-46404)

    A denial of service vulnerability exists in the g_assert_not_reached functionality of Entr'ouvert     Lasso 2.5.1 and 2.8.2. A specially crafted SAML assertion response can lead to a denial of service. An     attacker can send a malformed SAML response to trigger this vulnerability. (CVE-2025-46705)

    A type confusion vulnerability exists in the lasso_node_impl_init_from_xml functionality of     Entr'ouvert Lasso 2.5.1 and 2.8.2. A specially crafted SAML response can lead to an arbitrary code     execution. An attacker can send a malformed SAML response to trigger this vulnerability. (CVE-2025-47151)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of lasso installed on the remote host is prior to 2.9.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-3077 advisory.

    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. (CVE-2025-46404)

    A denial of service vulnerability exists in the g_assert_not_reached functionality of Entr'ouvert     Lasso 2.5.1 and 2.8.2. A specially crafted SAML assertion response can lead to a denial of service. An     attacker can send a malformed SAML response to trigger this vulnerability. (CVE-2025-46705)

    A denial of service vulnerability exists in the lasso_node_init_from_message_with_format functionality of     Entr'ouvert Lasso 2.5.1. A specially crafted SAML response can lead to a memory depletion, resulting     in denial of service. An attacker can send a malformed SAML response to trigger this vulnerability.
    (CVE-2025-46784)

    A type confusion vulnerability exists in the lasso_node_impl_init_from_xml functionality of     Entr'ouvert Lasso 2.5.1 and 2.8.2. A specially crafted SAML response can lead to an arbitrary code     execution. An attacker can send a malformed SAML response to trigger this vulnerability. (CVE-2025-47151)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2025-46404)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
274695	Amazon Linux 2023 : lasso, lasso-devel, perl-lasso (ALAS2023-2025-1285)	Nessus	Amazon Linux Local Security Checks	critical
274680	Amazon Linux 2 : lasso, --advisory ALAS2-2025-3077 (ALAS-2025-3077)	Nessus	Amazon Linux Local Security Checks	critical
274080	Linux Distros Unpatched Vulnerability : CVE-2025-46404	Nessus	Misc.	high

Detections

Analytics

CVE-2025-46404

critical

Tenable Plugins

critical

critical

high