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Bug 176281 - net-dns/mydns DNS Update Denial of Service
Summary: net-dns/mydns DNS Update Denial of Service
Status: RESOLVED DUPLICATE of bug 176130
Alias: None
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: High normal (vote)
Assignee: Gentoo Security
Depends on:
Reported: 2007-04-27 20:10 UTC by Lars Hartmann
Modified: 2007-04-27 20:17 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Lars Hartmann 2007-04-27 20:10:53 UTC
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.

Set "allow-update" to "no".

Provided and/or discovered by:

Original Advisory:

Reproducible: Always
Comment 1 Jonathan Smith (RETIRED) gentoo-dev 2007-04-27 20:17:33 UTC

*** This bug has been marked as a duplicate of bug 176130 ***