Vulnerability CVE-2012-4436
Published: 2012-10-22   Modified: 2012-10-23

Description:
Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.4/10
6.4/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Cipherdyne -> Fwknop 

 References:
http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git;a=commitdiff;h=a60f05ad44e824f6230b22f8976399340cb535dc
http://www.openwall.com/lists/oss-security/2012/09/20/4
http://www.openwall.com/lists/oss-security/2012/09/19/2
http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html
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