VULNERABILITY INTELLIGENCE

CVE-2011-0017

CVSS score6.9 MEDIUM
EPSS probability0.38%
CISA KEVNot currently listed
Published2011-02-02
Last modified2026-06-16
CVSS vectorAV:L/AC:M/Au:N/C:C/I:C/A:C

Description

The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.

Weakness classification

  • CWE-20: Improper Input Validation
  • CWE-59: Improper Link Resolution Before File Access ('Link Following')

Primary references