CVE-2011-4623: Rsyslog

Low severity, CVSS 2.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.

Affected products

• Rsyslog Rsyslog: version 4.1.0 only; version 4.1.1 only; version 4.1.2 only; version 4.1.3 only; version 4.1.4 only; version 4.1.5 only; …

Published 2012-09-25. Last modified 2026-06-16.