FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

CVE-2012-4445

This CVE name corresponds to:

Entered	Topic
2012-11-24	FreeBSD -- Insufficient message length validation for EAP-TLS messages

The following information is adapted from the Common Vulnerabilities and Exposures (CVE) project. CVE and the CVE logo are trademarks of The MITRE Corporation. CVE content is Copyright 2005, The MITRE Corporation.

CVE-2012-4445 at cve.mitre.org

Details

Type	Candidate
Name	CVE-2012-4445
Phase	Assigned(20120821)

Description

Heap-based buffer overflow in the eap_server_tls_process_fragment function in eap_server_tls_common.c in the EAP authentication server in hostapd 0.6 through 1.0 allows remote attackers to cause a denial of service (crash or abort) via a small "TLS Message Length" value in an EAP-TLS message with the "More Fragments" flag set.

References

Source	Reference
MLIST	[oss-security] 20121008 [PRE-SA-2012-07] hostapd: Missing EAP-TLS message length validation
MISC	http://www.pre-cert.de/advisories/PRE-SA-2012-07.txt
CONFIRM	http://w1.fi/gitweb/gitweb.cgi?p=hostap.git;a=commitdiff;h=586c446e0ff42ae00315b014924ec669023bd8de
DEBIAN	DSA-2557
FREEBSD	FreeBSD-SA-12:07
MANDRIVA	MDVSA-2012:168
BID	55826
OSVDB	86051
SECTRACK	1027808
SECUNIA	50805
SECUNIA	50888
XF	hostapd-eaptls-dos(79104)