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The final version of the CSI 6.0 has been released. 
Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/

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TITLE:
FreeRADIUS Client Certificate Verification Buffer Overflow
Vulnerability

SECUNIA ADVISORY ID:
SA50484

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50484/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50484

RELEASE DATE:
2012-09-11

DISCUSS ADVISORY:
http://secunia.com/advisories/50484/#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/50484/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
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 * Remediation Status
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https://ca.secunia.com/?page=viewadvisory&vuln_id=50484

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:
A vulnerability has been reported in FreeRADIUS, which can be
exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error in the
"cbtls_verify()" function when validating client certificates. This
can be exploited to cause a stack-based buffer overflow via a
specially crafted "not after" timestamp field of a certificate.

Successful exploitation may allow execution of arbitrary code, but
requires a configuration using TLS-based EAP methods (e.g. EAP-TLS,
EAP-TTLS, and PEAP).

The vulnerability is reported in versions 2.1.10 through 2.1.12.

SOLUTION:
Update to version 2.2.0.

PROVIDED AND/OR DISCOVERED BY:
Timo Warns, PRESENSE Technologies GmbH.

ORIGINAL ADVISORY:
FreeRADIUS:
http://freeradius.org/security.html

Timo Warns:
http://seclists.org/oss-sec/2012/q3/419

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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