GLSA 200806-01 mtr: Stack-based buffer overflow
Posted on: 06/03/2008 05:00 PM

A new security update has been released for Gentoo Linux - mtr: Stack-based buffer overflow. Here the announcement:

Gentoo Linux Security Advisory GLSA 200806-01
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http://security.gentoo.org/
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Severity: High
Title: mtr: Stack-based buffer overflow
Date: June 03, 2008
Bugs: #223017
ID: 200806-01

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Synopsis
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A stack-based buffer overflow was found in mtr, possibly resulting in
the execution of arbitrary code.

Background
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mtr combines the functionality of the 'traceroute' and 'ping' programs
in a single network diagnostic tool.

Affected packages
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Package / Vulnerable / Unaffected
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1 net-analyzer/mtr lt; 0.73-r1 gt;=3D 0.73-r1

Description
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Adam Zabrocki reported a boundary error within the split_redraw()
function in the file split.c, possibly leading to a stack-based buffer
overflow.

Impact
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A remote attacker could use a specially crafted resolved hostname to
execute arbitrary code with root privileges. However, it is required
that the attacker controls the DNS server used by the victim, and that
the "-p" (or "--split") command line option is used.

Workaround
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There is no known workaround at this time.

Resolution
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All mtr users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose "gt;=3Dnet-analyzer/mtr-0.73-r1"

References
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[ 1 ] CVE-2008-2357
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2008-2357

Availability
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This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200806-01.xml

Concerns?
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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
http://bugs.gentoo.org.

License
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Copyright 2008 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5



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