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
Original Advisory: http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/054024.html
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Subject: MyDNS DNS Update Denial of Service
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