USN-5121-2: Mailman vulnerabilities
Publication date
1 November 2021
Overview
Several security issues were fixed in Mailman.
Releases
Packages
- mailman - Web-based mailing list manager
Details
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. (
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)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 20.04 LTS focal | mailman – 1:2.1.29-1ubuntu3.1 | ||
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