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Debian Security Advisory DSA 4110-1 (exim4 - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
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.
Affected Software
Affected Software
exim4 on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
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 linked in the references.