Re: CVE request: kernel: SCTP memory corruption in HMAC handling

[Josh Bressers <bressers () redhat com>]

Please use CVE-2010-3705

Thanks.

-- 
    JB


----- "Dan Rosenberg" <dan.j.rosenberg () gmail com> wrote:

> Reference:
> http://marc.info/?l=linux-kernel&m=128596992418814&w=2
>
> When parsing a peer's supported HMAC authentication options in the
> sctp_auth_asoc_get_hmac() function, a malicious peer can craft their
> HMAC array in such a way as to cause memory corruption (out-of-bounds
> read followed by use of retrieved out-of-bounds data), which at the
> very least could cause a denial of service via kernel panic, and
> possibly worse.  It appears this could be triggered remotely when
> connecting to a malicious peer, or locally by a user acting as both
> endpoints.  In both cases, the "auth_enable" sysctl must be set in
> order to trigger the bug.
>
> -Dan