Vulnerability in GNU Mailman
CVE-2021-42096
GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A certain csrf_token value is derived from the admin password, and may be useful in conducting a brute-force attack against that password.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.013 (68.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- GNU Mailman
- Debian Linux — versions 10.0
Weakness classification (CWE)
References
- mail.python.org/archives/list/mailman-announce@python.org/thread/IKCO6JU755AP5G…
- bugs.launchpad.net/mailman/+bug/1947639 (Patch, Third Party Advisory)
- www.openwall.com/lists/oss-security/2021/10/21/4 (mailing-list, Patch, Mailing List, Third Party Advisory)
- www.debian.org/security/2021/dsa-4991 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42096?
- CVE-2021-42096 is a medium-severity vulnerability in GNU Mailman, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 4.3/10. Published 2021-10-21.
- How severe is CVE-2021-42096?
- Medium severity. CVSS v3 base score is 4.3 out of 10.