Code Injection in Gnu - CVE-2020-15011

Vulnerability identifier: #VU29388

CSH Severity: Low

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-15011

CWE-ID: CWE-94

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to inject arbitrary content.

The vulnerability exists due to improper input validation within the Cgi/private.py private archive login page.  A remote attacker can send a specially crafted request and inject arbitrary content.

Successful exploitation of the vulnerability requires that the roster visibility (private_roster) setting is 'Anyone'.

Gnu
Debian Linux
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
openEuler
Ubuntu
mailman (Debian package)
mailman (Ubuntu package)
mailman
mailman-debugsource
mailman-debuginfo

Install updates from vendor's website.

Gnu - update to 2.1.33
mailman (Debian package) - update to 1:2.1.29-1+deb10u2
mailman (Ubuntu package) - update to 1:2.1.29-1ubuntu3.1
mailman - update to 2.1.29-8
mailman-debugsource - update to 2.1.29-8
mailman-debuginfo - update to 2.1.29-8

• https://bugs.launchpad.net/mailman/+bug/1877379

• Content injection in GNU Mailman
• Red Hat Enterprise Linux 8 update for the mailman:2.1 module
• Ubuntu update for mailman
• Debian update for mailman
• openEuler update for mailman