Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201204-02
(InspIRCd: Arbitrary code execution)

A vulnerability in InspIRCd allows DNS compression features to control
the number of overflowed bytes sent to the heap-based buffer 'res[]' in
dns.cpp.

Impact :

A remote attacker could send specially crafted DNS responses, possibly
resulting in execution of arbitrary code with the privileges of the
process or a Denial of Service condition.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201204-02.xml

Solution :

All InspIRCd users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-irc/inspircd-2.0.5-r1'

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)