Executive Summary

Summary
Title ktsuss: Privilege escalation
Informations
Name GLSA-201201-15 First vendor Publication 2012-01-27
Vendor Gentoo Last vendor Modification 2012-01-27
Severity (Vendor) High Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score Not Defined Attack Range Not Defined
Cvss Impact Score Not Defined Attack Complexity Not Defined
Cvss Expoit Score Not Defined Authentication Not Defined
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Two vulnerabilities have been found in ktsuss, allowing local attackers to gain escalated privileges.

Background

ktsuss is a simple, graphical version of su written in C and GTK+.

Description

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).

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.

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:

http://security.gentoo.org/glsa/glsa-201201-15.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-201201-15.xml

Alert History

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Date Informations
2014-02-17 11:37:10
  • Multiple Updates