VDB
CVE-2021-35525
CVE-2021-35525
PUBLISHED
CVSS 5.300000190734863 MEDIUM
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."
EPSS 1.65% · 76.2th percentile
Risk Scores
CVSS 3.1
5.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score
1.65%
76.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | postsrsd | 0, 1.5-2 |
| Ubuntu:24.04:LTS | postsrsd | 1.10-2.1build1, 1.10-2, 0 |
| Ubuntu:22.04:LTS | postsrsd | 0, 1.10-2 |
| Ubuntu:25.10 | postsrsd | 1.10-2.2, 0 |
| Ubuntu:16.04:LTS | postsrsd | 0, 1.2-1 |
| Ubuntu:18.04:LTS | postsrsd | 0, 1.4-1ubuntu0.1, 1.4-1 |
Timeline
- Jun 28, 2021 CVE Published
- Jun 29, 2021 EPSS Score
- Aug 29, 2021 EPSS Score
- Oct 29, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 27, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 29, 2022 EPSS Score
- Aug 29, 2022 EPSS Score
- Oct 29, 2022 EPSS Score
- Dec 29, 2022 EPSS Score
References
- https://bugs.gentoo.org/793674 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-35525 third-party-advisory
- https://ubuntu.com/security/CVE-2021-35525 advisory
- https://github.com/roehling/postsrsd/commit/077be98d8c8a9847e4ae0c7dc09e7474cbe27db2 fix
- https://github.com/roehling/postsrsd/releases/tag/1.11 fix