USN-5121-2

USN-5009-1 fixed vulnerabilities in Mailman. This update provides the corresponding updates for Ubuntu 20.04 LTS. In addition, the following CVEs were fixed:

It was discovered that Mailman allows arbitrary content injection. An attacker could use this to inject malicious content. (CVE-2020-12108, CVE-2020-15011)

It was discovered that Mailman improperly sanitize the MIME content. An attacker could obtain sensitive information by sending a special type of attachment. (CVE-2020-12137)

Original advisory details:

Andre Protas, Richard Cloke, and Andy Nuttall discovered that Mailman did not properly associate cross-site request forgery (CSRF) tokens to specific accounts. A remote attacker could use this to perform a CSRF attack to gain access to another account. (CVE-2021-42097)

Andre Protas, Richard Cloke, and Andy Nuttall discovered that Mailman’s cross-site request forgery (CSRF) tokens for the options page are derived from the admin password. A remote attacker could possibly use this to assist in performing a brute force attack against the admin password. (CVE-2021-42096)

References

Affected packages

Ubuntu:20.04:LTS / mailman

Package

Name: mailman
Purl: pkg:deb/ubuntu/mailman@1:2.1.29-1ubuntu3.1?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:2.1.29-1ubuntu3.1

Affected versions

1:2.*

1:2.1.29-1

1:2.1.29-1build1

1:2.1.29-1ubuntu3

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "mailman",
            "binary_version": "1:2.1.29-1ubuntu3.1"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2020-12108",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-12137",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2020-15011",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2021-42096",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2021-42097",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5121-2.json"