Gentoo: GLSA-201204-02 Critical: InspIRCd Code Execution Vulnerability
gentoo
April 10, 2012
A heap-based buffer overflow in InspIRCd may allow execution of arbitrary code.
Summary
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.
Topics Covered
Resolution
All InspIRCd users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/inspircd-2.0.5-r1"
References
[ 1 ] CVE-2012-1836 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1836
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201204-02
style>.gentoo_availability{display:block;}
Concerns
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
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Critical
Severity: High
Title: InspIRCd: Arbitrary code execution
Date: April 10, 2012
Bugs: #409159
ID: 201204-02
Topics Covered
Background
InspIRCd (Inspire IRCd) is a modular C++ IRC daemon
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Affected Packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-irc/inspircd < 2.0.5-r1 >= 2.0.5-r1
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.
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