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Gentoo Linux Security Advisory GLSA 200701-17
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http://security.gentoo.org/
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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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