USN-4521-1

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Source
https://ubuntu.com/security/notices/USN-4521-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4521-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4521-1
Upstream
Related
Published
2020-09-21T14:33:33.857249Z
Modified
2025-10-13T04:35:13Z
Summary
libpam-tacplus vulnerability
Details

It was discovered that pam_tacplus did not properly manage shared secrets if DEBUG loglevel and journald are used. A remote attacker could use this issue to expose sensitive information.

References

Affected packages

Ubuntu:16.04:LTS / libpam-tacplus

Package

Name
libpam-tacplus
Purl
pkg:deb/ubuntu/libpam-tacplus@1.3.8-2+deb8u1build0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.3.8-2+deb8u1build0.16.04.1

Affected versions

1.*

1.3.8-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.3.8-2+deb8u1build0.16.04.1",
            "binary_name": "libpam-tacplus"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4521-1.json"

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-13881"
        }
    ],
    "ecosystem": "Ubuntu:16.04:LTS"
}

Ubuntu:18.04:LTS / libpam-tacplus

Package

Name
libpam-tacplus
Purl
pkg:deb/ubuntu/libpam-tacplus@1.3.8-2+deb8u1build0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.3.8-2+deb8u1build0.18.04.1

Affected versions

1.*

1.3.8-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.3.8-2+deb8u1build0.18.04.1",
            "binary_name": "libpam-tacplus"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4521-1.json"

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-13881"
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}

Ubuntu:20.04:LTS / libpam-tacplus

Package

Name
libpam-tacplus
Purl
pkg:deb/ubuntu/libpam-tacplus@1.3.8-2+deb8u1build0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.3.8-2+deb8u1build0.20.04.1

Affected versions

1.*

1.3.8-2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1.3.8-2+deb8u1build0.20.04.1",
            "binary_name": "libpam-tacplus"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4521-1.json"

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-13881"
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}