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[ GLSA 201406-04 ] SystemTap: Denial of Service
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GLSA
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PostPosted: Thu Jun 05, 2014 1:26 am    Post subject: [ GLSA 201406-04 ] SystemTap: Denial of Service Reply with quote

Gentoo Linux Security Advisory

Title: SystemTap: Denial of Service (GLSA 201406-04)
Severity: normal
Exploitable: local
Date: June 05, 2014
Bug(s): #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: dev-util/systemtap
Vulnerable: < 2.0
Unaffected: >= 2.0
Architectures: 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:
Code:
# emerge --sync
      # emerge --ask --oneshot --verbose ">=dev-util/systemtap-2.0"
   


References

CVE-2012-0875
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