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TITLE:
Gentoo ktsuss Two Vulnerabilities

SECUNIA ADVISORY ID:
SA47746

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/47746/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=47746

RELEASE DATE:
2012-01-30

DISCUSS ADVISORY:
http://secunia.com/advisories/47746/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/47746/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=47746

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Gentoo has acknowledged two vulnerabilities in the ktsuss package,
which can be exploited by malicious, local users to bypass certain
security restrictions and gain escalated privileges.

1) An error within src/ktsuss.c when the target UID (user ID) and the
current UID are identical leads to an authentication bypass and
prevents the dropping of privileges, which can be exploited to
execute arbitrary commands with root privileges.

2) An error due to spawning a GTK interface subprocess with root
privileges can be exploited to execute arbitrary commands with root
privileges by using the "GTK_MODULES" environment variable.

SOLUTION:
The vendor recommends to unmerge ktsuss.

Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY:
1, 2) John Lightsey via the OSS mailing list.

ORIGINAL ADVISORY:
GLSA 201201-15:
http://www.gentoo.org/security/en/glsa/glsa-201201-15.xml

OSS security:
http://www.openwall.com/lists/oss-security/2011/08/13/2

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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