Vulnerability in Postsrsd Project
CVE-2021-35525
PostSRSd before 1.11 allows a denial of service (subprocess hang) if Postfix sends certain long data fields such as multiple concatenated email addresses. NOTE: the PostSRSd maintainer acknowledges "theoretically, this error should never occur ... I'm not sure if there's a reliable way to trigger this condition by an external attacker, but it is a security bug in PostSRSd nevertheless."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.017 (75.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.017 · change: +0.000
Affected products
References
- github.com/roehling/postsrsd/releases/tag/1.11 (Third Party Advisory, Release Notes)
- github.com/roehling/postsrsd/commit/077be98d8c8a9847e4ae0c7dc09e7474cbe27db2 (Patch, Third Party Advisory)
- bugs.gentoo.org/793674 (Patch, Third Party Advisory, Release Notes, Issue Tracking)
- security.gentoo.org/glsa/202107-08 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-35525?
- CVE-2021-35525 is a medium-severity vulnerability in Postsrsd Project. CVSS score: 5.3/10. Published 2021-06-28.
- How severe is CVE-2021-35525?
- Medium severity. CVSS v3 base score is 5.3 out of 10.