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Chosen message with ID ae-201111-004

System: Red Hat Enterprise Linux
Topic: Vulnerability in openswan
Links: RHSA-2011-1422, CVE-2011-4073, ESB-2011.1098
ID: ae-201111-004

Openswan is a free implementation of Internet Protocol Security (IPsec) and Internet Key Exchange (IKE). A use-after-free flaw has been found in the way Openswan's pluto IKE daemon uses cryptographic helpers. A remote, authenticated attacker could send a specially-crafted IKE packet that would crash the pluto daemon, meaning a Denial-of-Service (DoS). This issue only affects SMP (symmetric multiprocessing) systems that have the cryptographic helpers enabled.
Updated packages are available for Red Hat Enterprise Linux 5 and 6.



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