ubuntu-security-announce Digest, Vol 92, Issue 8

Send ubuntu-security-announce mailing list submissions to
ubuntu-security-announce@lists.ubuntu.com

To subscribe or unsubscribe via the World Wide Web, visit
https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
or, via email, send a message with subject or body 'help' to
ubuntu-security-announce-request@lists.ubuntu.com

You can reach the person managing the list at
ubuntu-security-announce-owner@lists.ubuntu.com

When replying, please edit your Subject line so it is more specific
than "Re: Contents of ubuntu-security-announce digest..."


Today's Topics:

1. [USN-1442-1] Sudo vulnerability (Tyler Hicks)


----------------------------------------------------------------------

Message: 1
Date: Wed, 16 May 2012 14:29:08 -0500
From: Tyler Hicks <tyhicks@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-1442-1] Sudo vulnerability
Message-ID: <20120516192907.GA28714@boyd>
Content-Type: text/plain; charset="us-ascii"

==========================================================================
Ubuntu Security Notice USN-1442-1
May 16, 2012

sudo vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Sudo could allow users to run arbitrary programs as the administrator.

Software Description:
- sudo: Provide limited super user privileges to specific users

Details:

It was discovered that sudo incorrectly handled network masks when using Host
and Host_List. A local user who is listed in sudoers may be allowed to run
commands on unintended hosts when IPv4 network masks are used to grant access.
A local attacker could exploit this to bypass intended access restrictions. Host
and Host_List are not used in the default installation of Ubuntu.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 LTS:
sudo 1.8.3p1-1ubuntu3.2
sudo-ldap 1.8.3p1-1ubuntu3.2

Ubuntu 11.10:
sudo 1.7.4p6-1ubuntu2.1
sudo-ldap 1.7.4p6-1ubuntu2.1

Ubuntu 11.04:
sudo 1.7.4p4-5ubuntu7.2
sudo-ldap 1.7.4p4-5ubuntu7.2

Ubuntu 10.04 LTS:
sudo 1.7.2p1-1ubuntu5.4
sudo-ldap 1.7.2p1-1ubuntu5.4

Ubuntu 8.04 LTS:
sudo 1.6.9p10-1ubuntu3.9
sudo-ldap 1.6.9p10-1ubuntu3.9

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1442-1
CVE-2012-2337

Package Information:
https://launchpad.net/ubuntu/+source/sudo/1.8.3p1-1ubuntu3.2
https://launchpad.net/ubuntu/+source/sudo/1.7.4p6-1ubuntu2.1
https://launchpad.net/ubuntu/+source/sudo/1.7.4p4-5ubuntu7.2
https://launchpad.net/ubuntu/+source/sudo/1.7.2p1-1ubuntu5.4
https://launchpad.net/ubuntu/+source/sudo/1.6.9p10-1ubuntu3.9

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20120516/206dabac/attachment-0001.pgp>

------------------------------

--
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce


End of ubuntu-security-announce Digest, Vol 92, Issue 8
*******************************************************