Date: Fri, 8 Mar 2013 04:47:44 +0100 From: Petr Matousek <pmatouse@...hat.com> To: oss-security@...ts.openwall.com, spender@...ecurity.net, Kurt Seifried <kseifrie@...hat.com> Subject: Re: CVE Request -- Linux kernel: sctp: SCTP_GET_ASSOC_STATS stack overflow It's stack buffer overflow, not stack overflow, sorry. On Fri, Mar 08, 2013 at 04:23:49AM +0100, Petr Matousek wrote: > A local user could use the missing size check in > sctp_getsockopt_assoc_stats() function to escalate their privileges. On > x86 this might be mitigated by destination object size check as the > destination size is known at compile time. > > Upstream fix: > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=726bc6b0 > > Introduced by: > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=196d6759 > > Introduced in: > v3.8-rc1 > > References: > https://twitter.com/grsecurity/status/309805924749541376 > http://grsecurity.net/~spender/sctp.c https://bugzilla.redhat.com/show_bug.cgi?id=919315 Thanks, -- Petr Matousek / Red Hat Security Response Team
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