VulnerabilityModified
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.
MEDIUM 5.3EPSS 1.62%
Does this matter?
Lower severity and a low EPSS score (1.62%). Track it; it rarely justifies an emergency change on its own.
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."
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 1.62% probability · 75th percentile
- CISA KEV
- Not listed
- Affected
- postsrsd project/postsrsd
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.