oss-sec mailing list archives

Re: CVE request: FreeBSD/NetBSD 802.11 kernel memory disclosure


From: Josh Bressers <bressers () redhat com>
Date: Mon, 20 Jun 2011 15:12:35 -0400 (EDT)



----- Original Message -----
On Mon, Jun 20, 2011 at 3:05 PM, Josh Bressers <bressers () redhat 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.


One ID will work then.

Please use CVE-2011-2480.

Thanks.

-- 
    JB


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