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aRts: Privilege escalation


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200606-22 / aRts
Release Date June 22, 2006
Latest Revision June 22, 2006: 01
Impact high
Exploitable local
Package Vulnerable versions Unaffected versions Architecture(s)
kde-base/arts < 3.5.2-r1 >= 3.5.2-r1, revision >= 3.4.3-r1 All supported architectures

Related bugreports: #135970


The artswrapper part of aRts allows local users to execute arbitrary code with elevated privileges.

2.  Impact Information


aRts is a real time modular system for synthesizing audio used by KDE. artswrapper is a helper application used to start the aRts daemon.


artswrapper fails to properly check whether it can drop privileges accordingly if setuid() fails due to a user exceeding assigned resource limits.


Local attackers could exploit this vulnerability to execute arbitrary code with elevated privileges. Note that the aRts package provided by Gentoo is only vulnerable if the artswrappersuid USE-flag is enabled.

3.  Resolution Information


There is no known workaround at this time.


All aRts users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose kde-base/arts

4.  References


Page updated June 22, 2006

Summary: This is a Gentoo Linux Security Advisory

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