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List:       oss-security
Subject:    Re: [oss-security] CVE Request -- Linux kernel: sctp: duplicate cookie handling NULL pointer derefer
From:       Kurt Seifried <kseifried () redhat ! com>
Date:       2013-06-21 2:44:33
Message-ID: 51C3BE11.9040501 () redhat ! com
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On 06/20/2013 02:16 PM, Petr Matousek wrote:
> A flaw was found in the way Linux kernel's SCTP network protocol 
> implementation handled duplicate cookies. A transient empty
> association is created while processing the duplicate cookie chunk
> that userspace could query, potentially leading to NULL pointer
> dereference. A remote attacker able to initiate SCTP connection to
> the system could use this flaw to create transient conditions that
> could lead to remote system crash if remote system user is querying
> SCTP connection info at the time these conditions exist.
> 
> Upstream fix: 
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f2815633504b442ca0b0605c16bf3d88a3a0fcea
>  
> 
(already in stable)
> 
> References: https://bugzilla.redhat.com/show_bug.cgi?id=976562
> 
> Thanks,

Please use CVE-2013-2206 for this issue.

- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
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