Gentoo: GLSA-201406-04: SystemTap: Denial of Service
Summary
SystemTap does not properly handle DWARF expressions when unwinding the stack.
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:
https://security.gentoo.org/glsa/201406-04
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.
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
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.