Vulnerability CVE-2011-4073
Published: 2011-11-17   Modified: 2012-02-13

Description:
Use-after-free vulnerability in the cryptographic helper handler functionality in Openswan 2.3.0 through 2.6.36 allows remote authenticated users to cause a denial of service (pluto IKE daemon crash) via vectors related to the (1) quick_outI1_continue and (2) quick_outI1 functions.

Type:

CWE-399

 (Resource Management Errors)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Xelerance -> Openswan 
Openswan -> Openswan 

 References:
http://www.debian.org/security/2011/dsa-2374
http://www.openswan.org/download/CVE-2011-4073/CVE-2011-4073.txt
http://www.redhat.com/support/errata/RHSA-2011-1422.html
http://www.securityfocus.com/bid/50440
http://www.securitytracker.com/id?1026268
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