[ubuntu-mono] [Bug 651054] Re: CVE-2010-3365: insecure library loading

[Launchpad Bug Tracker]

This bug was fixed in the package mistelix - 0.30-0ubuntu1.1

---------------
mistelix (0.30-0ubuntu1.1) karmic-security; urgency=low

  * SECURITY UPDATE: insecure LD_LIBRARY_PATH redefinition (LP: #651054)
    - Add debian/patches/insecure-library-loading.patch
    - Patch based on work by Siegfried-Angel Gevatter Pujals
    - CVE-2010-3365
 -- Jamie Strandboge <jamie at ubuntu.com>   Mon, 04 Oct 2010 14:42:27 -0500

-- 
CVE-2010-3365: insecure library loading
https://bugs.launchpad.net/bugs/651054
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Status in “mistelix” package in Ubuntu: Fix Released
Status in “mistelix” source package in Lucid: Fix Released
Status in “mistelix” source package in Karmic: Fix Released

Bug description:
Binary package hint: mistelix

>From http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598297:


Package: mistelix
Version: 0.31-1
Severity: grave
Tags: security
User: team at security.debian.org
Usertags: ldpath

Hello,

During a review of the Debian archive, I've found your package to
contain a script that can be abused by an attacker to execute arbitrary
code.

The vulnerability is introduced by an insecure change to
LD_LIBRARY_PATH, and environment variable used by ld.so(8) to look for
libraries on a directory other than the standard paths.

Vulnerable code follows:

/usr/bin/mistelix line 8:
export LD_LIBRARY_PATH=$libdir/mistelix/:$LD_LIBRARY_PATH

When there's an empty item on the colon-separated list of
LD_LIBRARY_PATH, ld.so treats it as '.' (i.e. CWD/$PWD.)
If the given script is executed from a directory where a potential,
local, attacker can write files to, there's a chance to exploit this
bug.

This vulnerability has been assigned the CVE id CVE-2010-3365. Please make sure
you mention it when forwarding this report to upstream and when fixing
this bug (everywhere: upstream and here at Debian.)

[0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3365
[1] http://security-tracker.debian.org/tracker/CVE-2010-3365

Sincerely,
Raphael Geissert