Debian: DSA-1981-2 Critical: nginx Buffer Overflow Vulnerability

David Leadbeater discovered an integer underflow that could be triggered
via the LINKS command and can lead to a denial of service or the
execution of arbitrary code (CVE-2009-4016). This issue affects both,
ircd-hybrid and ircd-ratbox.

It was discovered that the ratbox IRC server is prone to a denial of
service attack via the HELP command. The ircd-hybrid package is not
vulnerable to this issue (CVE-2010-0300).


For the stable distribution (lenny), this problem has been fixed in
version 1:7.2.2.dfsg.2-4+lenny1 of the ircd-hybrid package and in
version 2.2.8.dfsg-2+lenny1 of ircd-ratbox.

Due to a bug in the archive software it was not possible to release the
fix for the oldstable distribution (etch) simultaneously. The packages
will be released as version 7.2.2.dfsg.2-3+etch1 once they become
available.

For the testing distribution (squeeze) and the unstable distribution
(sid), this problem will be fixed soon.


We recommend that you upgrade your ircd-hybrid/ircd-ratbox packages.


Upgrade instructions
- ...