CVE catalog

CVE-2021-42097

UBUNTU-CVE-2021-42097

[CVE catalog]

Severity
High · CVSS 8CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published
Updated
Source
[NVD] · [CVE record]
EPSS
1.33% · Oct 25, 2026

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)

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Ubuntumailmanpro1:2.1.20-1vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.1vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.3vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.4vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.5vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.6vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.6+esm1fixed
Ubuntumailman18.041:2.1.23-1vulnerable
Ubuntumailman18.041:2.1.24-1vulnerable
Ubuntumailman18.041:2.1.25-1vulnerable
Ubuntumailman18.041:2.1.26-1vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.1vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.2vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.3vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.4fixed
Ubuntumailmanpro1:2.1.20-1vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.1vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.3vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.4vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.5vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.6vulnerable
Ubuntumailmanpro1:2.1.20-1ubuntu0.6+esm1fixed
Ubuntumailman18.041:2.1.23-1vulnerable
Ubuntumailman18.041:2.1.24-1vulnerable
Ubuntumailman18.041:2.1.25-1vulnerable
Ubuntumailman18.041:2.1.26-1vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.1vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.2vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.3vulnerable
Ubuntumailman18.041:2.1.26-1ubuntu0.4fixed
Ubuntumailman20.041:2.1.29-1vulnerable
Ubuntumailman20.041:2.1.29-1build1vulnerable
Ubuntumailman20.041:2.1.29-1ubuntu3vulnerable
Ubuntumailman20.041:2.1.29-1ubuntu3.1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Ubuntumailmandebpro1:2.1.20-1ubuntu0.6+esm1Not reportedUSN-5121-1Not reported
Ubuntumailmandeb18.041:2.1.26-1ubuntu0.4Not reportedUSN-5121-1Not reported
Ubuntumailmandebpro1:2.1.20-1ubuntu0.6+esm1Not reportedUBUNTU-CVE-2021-42097Not reported
Ubuntumailmandeb18.041:2.1.26-1ubuntu0.4Not reportedUBUNTU-CVE-2021-42097Not reported
Ubuntumailmandeb20.041:2.1.29-1ubuntu3.1Not reportedUBUNTU-CVE-2021-42097Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References

[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]