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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:
hostapd EAP-TLS Message Handling Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA50888

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50888/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50888

RELEASE DATE:
2012-10-08

DISCUSS ADVISORY:
http://secunia.com/advisories/50888/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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http://secunia.com/advisories/50888/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=50888

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 hostapd, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a boundary error within the
"eap_server_tls_process_fragment()" function
(eap_server/eap_server_tls_common.c) when handling fragment data
within TLS messages. This can be exploited to cause a buffer overflow
and crash the service via a specially crafted EAP-TLS message.

Successful exploitation requires that hostapd is configured to use
the internal EAP authentication server.

The vulnerability is reported in versions 0.6  through 1.0.

SOLUTION:
Fixed in the GIT repository.

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

ORIGINAL ADVISORY:
PRESENSE Technologies (PRE-SA-2012-07):
http://www.pre-cert.de/advisories/PRE-SA-2012-07.txt

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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