CVE-2021-35525

MEDIUM

postsrsd < 1.11 - Denial of Service via Long Data Fields

Title source: llm
STIX 2.1

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."

References (4)

Core 4
Core References
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/roehling/postsrsd/releases/tag/1.11
Issue Tracking, Patch, Release Notes, Third Party Advisory x_refsource_misc
https://bugs.gentoo.org/793674
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202107-08

Scores

CVSS v3 5.3
EPSS 0.0162
EPSS Percentile 73.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

Status published
Products (1)
postsrsd_project/postsrsd < 1.11
Published Jun 28, 2021
Tracked Since Feb 18, 2026