National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-4445 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://w1.fi/gitweb/gitweb.cgi?p=hostap.git;a=commitdiff;h=586c446e0ff42ae00315b014924ec669023bd8de Patch
http://www.debian.org/security/2012/dsa-2557
http://www.freebsd.org/security/advisories/FreeBSD-SA-12:07.hostapd.asc
http://www.mandriva.com/security/advisories?name=MDVSA-2012:168
http://www.openwall.com/lists/oss-security/2012/10/08/3
http://www.pre-cert.de/advisories/PRE-SA-2012-07.txt
http://www.securityfocus.com/bid/55826
http://www.securitytracker.com/id?1027808
https://exchange.xforce.ibmcloud.com/vulnerabilities/79104

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:w1.fi:hostapd:0.6.0
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.6.1
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.6.2
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.6.3
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.6.4
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.6.5
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.6.6
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.6.7
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.7.0
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.7.1
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.7.2
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:0.7.3
     Show Matching CPE(s)
 cpe:/a:w1.fi:hostapd:1.0
     Show Matching CPE(s)


Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-4445
NVD Published Date:
10/10/2012
NVD Last Modified:
08/28/2017