oss-sec mailing list archives

Re: CVE Requests (maybe): Linux kernel: various info leaks, some NULL ptr derefs


From: Kurt Seifried <kseifried () redhat com>
Date: Thu, 07 Mar 2013 22:07:44 -0700

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On 03/07/2013 09:55 PM, Petr Matousek wrote:
On Thu, Mar 07, 2013 at 01:19:05PM +0400, Solar Designer wrote:
Kurt -

On Thu, Mar 07, 2013 at 02:13:37AM -0700, Kurt Seifried wrote:
Bundling the following into a single CVE:
[...]
Please use CVE-2012-6138 for these issues.

I think this is wrong.  I would understand if those issues were
all in the same subsystem at least (or if you assigned
per-subsystem CVE IDs for these), but this is not the case.  Many
distros will fix some, but not the others, or not all at the same
time.  There's room for a little bit of bundling here, but not
that much.

In the past we've usually assigned one CVE per issue even for info
leak bugs. Or at least one CVE per subsystem, as Alexander says. I
agree with Alexander that one CVE for about ~20 issues is not
right.

Agreed (I was wrong, not much more to say than that =). It sounds like
Mitre will be handling the additional CVEs for this issue as I
understand it.

Now my question is how concise do we go with the Linux kernel as far
as subsystems go? E.g. file subsystem vs network subsystem seems
obvious, and say ext4 vs. MSDOS file system code seems obvious but
what about network drivers (same chipset? same maker, different
chipsets? or like ext2 vs ext3 vs ext4).

- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993

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