CVE-2012-4445

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.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 5.32% Top 15%
Vendor Advisory debian.org Vendor Advisory mandriva.com Vendor Advisory freebsd.org Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://w1.fi/gitweb/gitweb.cgi?p=hostap.git%3Ba=commitdiff%3Bh=586c446e0ff42ae00315b014924ec669023bd8de
http://www.pre-cert.de/advisories/PRE-SA-2012-07.txt
http://www.openwall.com/lists/oss-security/2012/10/08/3 mailing list
http://secunia.com/advisories/50805 third party advisory vendor advisory
http://www.debian.org/security/2012/dsa-2557 vendor advisory
http://www.securitytracker.com/id?1027808 vdb entry
http://www.mandriva.com/security/advisories?name=MDVSA-2012:168 vendor advisory
http://osvdb.org/86051 vdb entry
http://www.securityfocus.com/bid/55826 vdb entry
http://www.freebsd.org/security/advisories/FreeBSD-SA-12:07.hostapd.asc vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/79104 vdb entry
http://secunia.com/advisories/50888 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2012-4445?
CVE-2012-4445 has been scored as a medium severity vulnerability.
How to fix CVE-2012-4445?
To fix CVE-2012-4445, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-4445 being actively exploited in the wild?
It is possible that CVE-2012-4445 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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