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Date: Mon, 20 Jun 2011 15:07:54 -0400
From: Dan Rosenberg <dan.j.rosenberg@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: FreeBSD/NetBSD 802.11 kernel memory disclosure

On Mon, Jun 20, 2011 at 3:05 PM, Josh Bressers <bressers@...hat.com> wrote:
>
>
> ----- Original Message -----
>> NetBSD has committed a fix for an issue in the 802.11 stack [1].
>> FreeBSD is also affected and should release a fix shortly. Due to a
>> signedness error in the IEEE80211_IOC_CHANINFO ioctl, a local
>> unprivileged user could cause the kernel to copy large amounts of
>> kernel memory back to the user, disclosing potentially sensitive
>> information. The issue only affects certain non-x86 architectures,
>> such as SPARC.
>>
>> -Dan
>>
>> [1]
>> http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/net80211/ieee80211_ioctl.c?rev=1.56&content-type=text/x-cvsweb-markup&only_with_tag=MAIN
>
> I'm not entirely sure how to assign CVE ids for this. Is the code in
> question shared between FreeBSD and NetBSD, or is it different codebases
> but the same flaw?
>

Most of the 802.11 code, including the vulnerable code, is shared
between FreeBSD and NetBSD.

-Dan

> Thanks.
>
> --
>    JB
>

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