GLSA 201406-04: SystemTap: Denial of Service

Severity:normal
Title:SystemTap: Denial of Service
Date:06/05/2014
Bugs: #405345
ID:201406-04

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 Architecture(s)
dev-util/systemtap < 2.0 >= 2.0 All supported architectures

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

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 2010 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.

Thank you!