CVE Database

CVE-2011-4073

Impact: Moderate
Public: 2011-10-28
Bugzilla: 748961: CVE-2011-4073 openswan: use-after-free vulnerability leads to DoS

Details

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2011-4073 from the MITRE CVE dictionary and NIST NVD.

CVSS v2 metrics

Base Score: 4.0
Base Metrics: AV:N/AC:L/Au:S/C:N/I:N/A:P
Access Vector: Network
Access Complexity: Low
Authentication: Single Instance
Confidentiality Impact: None
Integrity Impact: None
Availability Impact: Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat security errata

Platform Errata Release Date
Red Hat Enterprise Linux version 5 (openswan) RHSA-2011:1422 November 02, 2011
Red Hat Enterprise Linux version 6 (openswan) RHSA-2011:1422 November 02, 2011

External References

http://openswan.org/download/CVE-2011-4073/CVE-2011-4073.txt

Acknowledgements

Red Hat would like to thank the Openswan project for reporting this issue. Upstream acknowledges Petar Tsankov, Mohammad Torabi Dashti and David Basin of the information security group at ETH Zurich as the original reporters.

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For clarification or corrections please contact the Red Hat Security Response Team.