Input validation error in Exim - CVE-2014-2972
Published: September 4, 2014 / Updated: August 10, 2020
Vulnerability identifier: #VU41356
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2014-2972
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Exim
Exim
Software vendor:
Exim
Exim
Description
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.
External links
- 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