FrSIRT Advisory : FrSIRT/ADV-2005-0357
CVE Reference : GENERIC-MAP-NOMATCH
Rated as : Low
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2005-04-16

 * Technical Description / Exploit *

A new vulnerability was identified in FreeBSD, which may be exploited by
local attackers to disclose sensitive information. The flaw resides in the
"SIOCGIFCONF" ioctl, and occurs when generating the list of network
interfaces without zeroing the buffer, which may cause up to 12 bytes of
kernel memory to be disclosed to the user process.

 * Affected Products *

FreeBSD 4.x
FreeBSD 5.x

 * Solution *

FreeBSD 4.x :
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:04/ifconf4.patch

FreeBSD 5.x :
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:04/ifconf5.patch

 * References *

http://www.frsirt.com/english/advisories/2005/0357
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:04.ifconf.asc

 * Credits *

Vulnerability reported by the vendor

 * ChangeLog *

2005-04-16 : Original Advisory



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