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[ GLSA 201204-02 ] InspIRCd: Arbitrary code execution
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PostPosted: Tue Apr 10, 2012 11:26 am    Post subject: [ GLSA 201204-02 ] InspIRCd: Arbitrary code execution Reply with quote

Gentoo Linux Security Advisory

Title: InspIRCd: Arbitrary code execution (GLSA 201204-02)
Severity: high
Exploitable: remote
Date: April 10, 2012
Bug(s): #409159
ID: 201204-02

Synopsis

A heap-based buffer overflow in InspIRCd may allow execution of
arbitrary code.


Background

InspIRCd (Inspire IRCd) is a modular C++ IRC daemon

Affected Packages

Package: net-irc/inspircd
Vulnerable: < 2.0.5-r1
Unaffected: >= 2.0.5-r1
Architectures: All supported architectures


Description

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.

Resolution

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


References

CVE-2012-1836
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