oss-security - Re: CVE request: FreeBSD/NetBSD 802.11 kernel memory disclosure

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Date: Mon, 20 Jun 2011 15:05:22 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: FreeBSD/NetBSD 802.11 kernel memory
 disclosure



----- 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?

Thanks.

-- 
    JB

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