Date: Thu, 24 Feb 2011 09:25:19 +0800 From: Eugene Teo <eugene@...hat.com> To: oss-security@...ts.openwall.com CC: Josh Bressers <bressers@...hat.com>, Timo Warns <warns@...-sense.de> Subject: Re: CVE request: kernel: fs/partitions: Kernel heap overflow via corrupted LDM partition tables On 02/24/2011 03:59 AM, Josh Bressers wrote: > ----- Original Message ----- >> >> The kernel automatically evaluates partition tables of storage devices. >> The code for evaluating LDM partitions (in fs/partitions/ldm.c) contains >> a bug that allows to overflow the kernel heap. It may be possible to >> escalate privileges by exploiting this bug. >> >> (This bug is distinct from the LDM bug reported by Eugene Teo on >> 2011-02-23.) >> >> This should affect both, 2.4 and 2.6 kernel. As a prerequisite, >> CONFIG_LDM_PARTITION needs to be set. >> > > Can you point to a commit message or something else that is public? It's > not clear how this differs from Eugene's request. As far as I can tell, it's not public yet. Timo will follow-up once his patch is accepted. Eugene -- Eugene Teo / Red Hat Security Response Team
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