Debian Security Advisory

DSA-2196-1 maradns -- buffer overflow

Date Reported:
19 Mar 2011
Affected Packages:
Security database references:
In the Debian bugtracking system: Bug 610834.
In Mitre's CVE dictionary: CVE-2011-0520.
More information:

Witold Baryluk discovered that MaraDNS, a simple security-focused Domain Name System server, may overflow an internal buffer when handling requests with a large number of labels, causing a server crash and the consequent denial of service.

For the oldstable distribution (lenny), this problem has been fixed in version

For the stable distribution (squeeze) and greater this problem had already been fixed in version 1.4.03-1.1.

We recommend that you upgrade your maradns packages.