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Date: Tue, 06 Aug 2013 08:48:01 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: security@...nel.org, oss-security@...ts.openwall.com
Subject: Re: CLONE_NEWUSER local DoS
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
On 08/06/2013 08:31 AM, Petr Matousek wrote:
> Hello,
>
> spender reported [1] a local DoS triggerable by unprivileged user
> when user namespaces are enabled (CONFIG_USER_NS).
>
> [1] https://twitter.com/grsecurity/status/364566062336978944
>
> Reproducer:
>
> b836010000bb00000010cd80ebf2 is for(;;)unshare(1<<28);
>
> Best regards,
>
Confirmed with Petr that he confirmed this issue. Please use
CVE-2013-4205 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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