Vulnerability CVE-2013-6401
Published: 2014-03-20   Modified: 2014-03-21

Description:
Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.

Type:

CWE-310

 (Cryptographic Issues)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Jansson project -> Jansson 

 References:
https://github.com/akheron/jansson/commit/8f80c2d83808150724d31793e6ade92749b1faa4
https://bugzilla.redhat.com/show_bug.cgi?id=1035538
http://lists.opensuse.org/opensuse-updates/2014-03/msg00057.html
http://comments.gmane.org/gmane.comp.security.oss.general/12099
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