Debian Security Advisory
DSA-4110-1 exim4 -- security update
- Date Reported:
- 10 Feb 2018
- Affected Packages:
- Security database references:
- In the Debian bugtracking system: Bug 890000.
In Mitre's CVE dictionary: CVE-2018-6789.
- More information:
Meh Chang discovered a buffer overflow flaw in a utility function used in the SMTP listener of Exim, a mail transport agent. A remote attacker can take advantage of this flaw to cause a denial of service, or potentially the execution of arbitrary code via a specially crafted message.
For the oldstable distribution (jessie), this problem has been fixed in version 4.84.2-2+deb8u5.
For the stable distribution (stretch), this problem has been fixed in version 4.89-2+deb9u3.
We recommend that you upgrade your exim4 packages.
For the detailed security status of exim4 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/exim4