oss-sec mailing list archives
Re: CVE request: kernel: fs/partitions: Kernel heap overflow via corrupted LDM partition tables
From: Eugene Teo <eugene () redhat com>
Date: Thu, 24 Feb 2011 09:25:19 +0800
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
Current thread:
- CVE request: kernel: fs/partitions: Kernel heap overflow via corrupted LDM partition tables Timo Warns (Feb 23)
- Re: CVE request: kernel: fs/partitions: Kernel heap overflow via corrupted LDM partition tables Josh Bressers (Feb 23)
- Re: CVE request: kernel: fs/partitions: Kernel heap overflow via corrupted LDM partition tables Eugene Teo (Feb 23)
- Re: CVE request: kernel: fs/partitions: Kernel heap overflow via corrupted LDM partition tables Josh Bressers (Feb 23)