Gentoo: GLSA-201201-15: ktsuss: Privilege escalation
Summary
Two vulnerabilities have been found in ktuss:
* Under specific circumstances, ktsuss skips authentication and fails
to change the effective UID back to the real UID (CVE-2011-2921).
* The GTK interface spawned by the ktsuss binary is run as root
(CVE-2011-2922).
Resolution
Gentoo discontinued support for ktsuss. We recommend that users unmerge
ktsuss:
# emerge --unmerge "x11-misc/ktsuss"
References
[ 1 ] CVE-2011-2921 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2921 [ 2 ] CVE-2011-2922 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-2922
Availability
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201201-15
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.
![Dist Gentoo](/images/distros/dist-gentoo.png)
Synopsis
Two vulnerabilities have been found in ktsuss, allowing local attackersto gain escalated privileges.
Background
ktsuss is a simple, graphical version of su written in C and GTK+.
Affected Packages
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-misc/ktsuss <= 1.4 Vulnerable! ------------------------------------------------------------------- NOTE: Certain packages are still vulnerable. Users should migrate to another package if one is available or wait for the existing packages to be marked stable by their architecture maintainers.
Impact
===== A local attacker could gain escalated privileges and use the "GTK_MODULES" environment variable to possibly execute arbitrary code with root privileges.
Workaround
There is no known workaround at this time.