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Gentoo Linux Security Advisory GLSA 201406-04
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http://security.gentoo.org/
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Severity: Normal
Title: SystemTap: Denial of Service
Date: June 05, 2014
Bugs: #405345
ID: 201406-04
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Synopsis
========
A vulnerability in SystemTap could allow a local attacker to create a
Denial of Service condition.
Background
==========
SystemTap is a kernel profiling and instrumentation tool.
Affected packages
=================
——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 dev-util/systemtap < 2.0 >= 2.0
Description
===========
SystemTap does not properly handle DWARF expressions when unwinding the
stack.
Impact
======
A local attacker with SystemTap permissions could trigger a kernel
panic, causing a Denial of Service condition.
Workaround
==========
Disabling unprivileged mode is a temporary workaround for this
vulnerability.
Resolution
==========
All SystemTap users should upgrade to the latest version:
# emerge –sync
# emerge –ask –oneshot –verbose “>=dev-util/systemtap-2.0”
References
==========
[ 1 ] CVE-2012-0875
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0875
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201406-04.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
https://bugs.gentoo.org.
License
=======
Copyright 2014 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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