CVE-2021-35525
Last modified
CVE-2021-35525 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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 ... EPSS estimates a 1.62% chance of exploitation in the next 30 days.
Description
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."
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Postsrsd Project | Postsrsd | < 1.11 |
References
- https://bugs.gentoo.org/793674Issue Tracking, Patch, Release Notes, Third Party Advisory
- https://github.com/roehling/postsrsd/commit/077be98d8c8a9847e4ae0c7dc09e7474cbe27db2Patch, Third Party Advisory
- https://github.com/roehling/postsrsd/releases/tag/1.11Release Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202107-08Third Party Advisory
- https://bugs.gentoo.org/793674Issue Tracking, Patch, Release Notes, Third Party Advisory
- https://github.com/roehling/postsrsd/commit/077be98d8c8a9847e4ae0c7dc09e7474cbe27db2Patch, Third Party Advisory
- https://github.com/roehling/postsrsd/releases/tag/1.11Release Notes, Third Party Advisory
- https://security.gentoo.org/glsa/202107-08Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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