CVE-2014-2957 Code injection in n/a
Remote attackers can execute arbitrary code on Exim mail servers with DMARC enabled by sending a malicious email with a crafted From header.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-2957?
CVE-2014-2957 is a medium-severity code injection vulnerability in Exim Exim, published on 4 Sep 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The dmarc_process function in dmarc.c in Exim before 4.82.1, when EXPERIMENTAL_DMARC is enabled, allows remote attackers to execute arbitrary code via the From header in an email, which is passed to the expand_string function.
Weakness: CWE-20
Which versions are affected by CVE-2014-2957?
It affects 1 product.
Products include Exim Exim.
How do I fix CVE-2014-2957?
Upgrade to a fixed version.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2014-2957 being exploited?
There is no known exploitation of CVE-2014-2957 in the wild and no public exploit code.
Other vulnerabilities in Exim Exim
Sources
Also known as DEBIAN-CVE-2014-2957, GHSA-r2xw-4p4f-wp3m, UBUNTU-CVE-2014-2957.