USN-7872-1

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Source
https://ubuntu.com/security/notices/USN-7872-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7872-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-7872-1
Upstream
Related
Published
2025-11-18T14:59:25.535653Z
Modified
2025-11-19T22:33:09.851660Z
Summary
lasso vulnerabilities
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)

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)

References

Affected packages

Ubuntu:22.04:LTS / lasso

Package

Name
lasso
Purl
pkg:deb/ubuntu/lasso@2.7.0-2ubuntu0.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.0-2ubuntu0.1

Affected versions

2.*

2.6.1-3build1
2.6.1-3build3
2.7.0-1
2.7.0-2
2.7.0-2build1
2.7.0-2build2
2.7.0-2build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblasso-perl",
            "binary_version": "2.7.0-2ubuntu0.1"
        },
        {
            "binary_name": "liblasso3",
            "binary_version": "2.7.0-2ubuntu0.1"
        },
        {
            "binary_name": "liblasso3-dev",
            "binary_version": "2.7.0-2ubuntu0.1"
        },
        {
            "binary_name": "python3-lasso",
            "binary_version": "2.7.0-2ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-46404"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-46705"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-46784"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-47151"
        }
    ]
}

Ubuntu:24.04:LTS / lasso

Package

Name
lasso
Purl
pkg:deb/ubuntu/lasso@2.8.2-2ubuntu0.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.8.2-2ubuntu0.1

Affected versions

2.*

2.8.1-1
2.8.1-1build1
2.8.1-2
2.8.2-1
2.8.2-1build1
2.8.2-2build1
2.8.2-2build2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblasso-perl",
            "binary_version": "2.8.2-2ubuntu0.1"
        },
        {
            "binary_name": "liblasso3-dev",
            "binary_version": "2.8.2-2ubuntu0.1"
        },
        {
            "binary_name": "liblasso3t64",
            "binary_version": "2.8.2-2ubuntu0.1"
        },
        {
            "binary_name": "python3-lasso",
            "binary_version": "2.8.2-2ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:24.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-46404"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-46705"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-47151"
        }
    ]
}

Ubuntu:25.04 / lasso

Package

Name
lasso
Purl
pkg:deb/ubuntu/lasso@2.8.2-8ubuntu0.1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.8.2-8ubuntu0.1

Affected versions

2.*

2.8.2-5
2.8.2-5build1
2.8.2-5build2
2.8.2-6
2.8.2-7
2.8.2-8
2.8.2-8build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "liblasso-perl",
            "binary_version": "2.8.2-8ubuntu0.1"
        },
        {
            "binary_name": "liblasso3-dev",
            "binary_version": "2.8.2-8ubuntu0.1"
        },
        {
            "binary_name": "liblasso3t64",
            "binary_version": "2.8.2-8ubuntu0.1"
        },
        {
            "binary_name": "python3-lasso",
            "binary_version": "2.8.2-8ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:25.04",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-46404"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-46705"
        },
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2025-47151"
        }
    ]
}