SB2014090406 - Input validation error in Exim
Published: September 4, 2014 Updated: August 10, 2020
Security Bulletin ID
SB2014090406
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2014-2972)
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
expand.c in Exim before 4.83 expands mathematical comparisons twice, which allows local users to gain privileges and execute arbitrary commands via a crafted lookup value.
Remediation
Install update from vendor's website.
References
- http://git.exim.org/exim.git/commitdiff/7685ce68148a083d7759e78d01aa5198fc099c44
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136251.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136264.html
- http://www.ubuntu.com/usn/USN-2933-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1122552
- https://lists.exim.org/lurker/message/20140722.145949.42c043f5.en.html
- https://lists.exim.org/lurker/message/20140722.152452.d6c019e8.en.html
- https://security.gentoo.org/glsa/201607-12