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Date: Thu, 19 Apr 2012 22:56:47 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: Eugene Teo <eugene@...hat.com>,
"Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request: kernel: fcaps: clear the same personality
flags as suid when fcaps are used
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On 04/19/2012 10:52 PM, Eugene Teo wrote:
> Reported by Steve Grubb, if a process increases permissions using
> fcaps all of the dangerous personality flags which are cleared for
> suid apps should also be cleared. Thus programs given priviledge
> with fcaps will continue to have address space randomization
> enabled even if the parent tried to disable it to make it easier to
> attack.
>
> Upstream commit:
> http://git.kernel.org/linus/d52fc5dde171f030170a6cb78034d166b13c9445
>
> Reference: https://bugzilla.redhat.com/show_bug.cgi?id=806722
>
> Thanks, Eugene
Please use CVE-2012-2123 for this issue.
- --
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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