Vulnerability CVE-2011-3336
Published: 2012-03-30   Modified: 2012-03-29

Description:
regcomp in the BSD implementation of libc is vulnerable to denial of service due to stack exhaustion.

See advisories in our WLB2 database:
Topic
Author
Date
High
Multiple BSD libc/regcomp(3) Multiple Vulnerabilities
Maksymilian Arci...
04.11.2011
Med.
PHP 5.4 5.3 memory_limit bypass poc
Maksymilian Arci...
30.03.2012
Med.
PHP 5.4/5.3 deprecated eregi() memory_limit bypass
Maksymilian Arci...
30.03.2012
Med.
MacOSX Safari Firefox Kaspersky RegExp Remote/Local Denial of Service
Maksymilian Arci...
13.03.2014

Type:

CWE-400

 (Uncontrolled Resource Consumption ('Resource Exhaustion'))

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
PHP -> PHP 
Openbsd -> Openbsd 
Freebsd -> Freebsd 
Apple -> Mac os x 

 References:
http://seclists.org/fulldisclosure/2014/Mar/166
http://www.securityfocus.com/bid/50541
https://cxsecurity.com/issue/WLB-2011110082
https://www.securityfocus.com/archive/1/520390
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