Secunia

mu-b has reported a vulnerability in MyDNS, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an input validation error within the "update_gobble_rr" function in src/mydns/update.c. This can be exploited to cause heap based buffer overflow and to crash the application.

Successful exploitation requires update privileges and that "allow-update" is set to "yes" in mydns.conf.

The vulnerability is reported in version 1.1.0. Other versions may also be affected.

Solution
Set "allow-update" to "no".

Provided and/or discovered by
mu-b

Changelog
Further details available in Customer Area

Original Advisory
http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/054024.html

Deep Links
Links available in Customer Area