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Gentoo Linux Security Advisory 200701-17

Gentoo Linux Security Advisory 200701-17
Posted Jan 24, 2007
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200701-17 - Liu Qishuai discovered that glibtop_get_proc_map_s() in sysdeps/linux/procmap.c does not properly allocate memory for storing a filename, allowing certain filenames to cause the buffer to overflow on the stack. Versions less than 2.14.6 are affected.

tags | advisory, overflow
systems | linux, gentoo
MD5 | f2b7f0baf630c02ca8099d8379093ce8

Gentoo Linux Security Advisory 200701-17

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Gentoo Linux Security Advisory GLSA 200701-17
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Severity: Normal
Title: libgtop: Privilege escalation
Date: January 23, 2007
Bugs: #162169
ID: 200701-17

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Synopsis
========

libgtop improperly handles filenames, possibly allowing for the
execution of arbitrary code.

Background
==========

libgtop facilitates the libgtop_daemon, which is used by GNOME to
obtain information about remote systems.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 gnome-base/libgtop < 2.14.6 >= 2.14.6

Description
===========

Liu Qishuai discovered that glibtop_get_proc_map_s() in
sysdeps/linux/procmap.c does not properly allocate memory for storing a
filename, allowing certain filenames to cause the buffer to overflow on
the stack.

Impact
======

By tricking a victim into executing an application that uses the
libgtop library (e.g. libgtop_daemon or gnome-system-monitor), a local
attacker could specify a specially crafted filename to be used by
libgtop causing a buffer overflow and possibly execute arbitrary code
with the rights of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libgtop users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=gnome-base/libgtop-2.14.6"

References
==========

[ 1 ] CVE-2007-0235
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0235

Availability
============

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

http://security.gentoo.org/glsa/glsa-200701-17.xml

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
http://bugs.gentoo.org.

License
=======

Copyright 2007 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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