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Re: Solaris Xsun buffer overflow vulnerability

daemon@ATHENA.MIT.EDU (Leif Sawyer)
Wed Apr 11 18:53:17 2001

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Message-ID:  <BF9651D8732ED311A61D00105A9CA3150446D832@berkeley.gci.com>
Date:         Wed, 11 Apr 2001 08:47:36 -0800
Reply-To: Leif Sawyer <lsawyer@GCI.COM>
From: Leif Sawyer <lsawyer@GCI.COM>
To: BUGTRAQ@SECURITYFOCUS.COM

> From: eEye Digital Security [mailto:eeye@EEYE.COM]
> Solaris Xsun buffer overflow vulnerability
>
> Discovered and exploited by:
> Riley Hassell riley@eeye.com
>
> Release Date:
> April 10, 2001
>
> Systems Affected:
> Solaris 7/8 (x86 and sparc)
>
> Description:
> Yet some more Solaris spring cleaning...
>
> A buffer overflow was discovered in Xsun. Since Xsun is SUID root,
> exploiting this vulnerability yields root privileges. The

Hmm.

Just a quick check on a couple of the boxen that I've got access to:

(historical reference)
root@okmok> uname -r
5.5.1
root@okmok> dir `which Xsun`
-rwxr-s-r-x   1 root     root     729792   Jan 26 21:20
/usr/openwin/bin/Xsun

root@foraker> uname -r
5.6
root@foraker> dir `which Xsun`
-rwxr-s-r-x   1 root     root     916792   May 5   2000
/usr/openwin/bin/Xsun

root@wormhole> uname -r
5.8
root@wormhole> dir `which Xsun`
-rwxr-s-r-x   1 root     root     1941644  Dec 15  1999
/usr/openwin/bin/Xsun

My Solaris 8 only seems to have the following patches:
root@wormhole> showrev -p | awk '{print $1 $2}'
Patch:108131-03
Patch:108132-03

Don't have a Solaris 7 box to check.  Not sure why your Solaris 8 has
a SUID Xsun install, either.

Leif

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