Secunia Security Advisory - A vulnerability has been reported in Openswan, which can be exploited by malicious people to cause a DoS (Denial of Service).
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TITLE:
Openswan IKE Daemon NULL Pointer Dereference Denial of Service
Vulnerability
SECUNIA ADVISORY ID:
SA46327
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46327/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46327
RELEASE DATE:
2011-10-17
DISCUSS ADVISORY:
http://secunia.com/advisories/46327/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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* Criticality Level
* Impact
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* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/46327/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=46327
ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
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DESCRIPTION:
A vulnerability has been reported in Openswan, which can be exploited
by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to a NULL pointer dereference error
in the "ike_alg_enc_ok()" function (pluto/ike_alg.c) when handling an
error during ISAKMP message processing. This can be exploited to cause
the pluto IKE daemon to restart via a specially crafted IKE packet
with an invalid KEY_LENGTH attribute.
Successful exploitation requires the attacker's IP address is allowed
to connect (e.g. via a policy) or support for dynamic clients is
enabled ("roadwarriors" via right=%any).
The vulnerability is reported in versions 2.6.29 through 2.6.35.
SOLUTION:
Update to version 2.6.36.
PROVIDED AND/OR DISCOVERED BY:
Reported by the vendor.
ORIGINAL ADVISORY:
http://www.openswan.org/download/CVE-2011-3380/CVE-2011-3380.txt
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
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