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AUSCERT External Security Bulletin Redistribution
ESB-2014.0312.2
Moderate: sudo security update
11 March 2014
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AusCERT Security Bulletin Summary
---------------------------------
Product: sudo
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 5
Red Hat Enterprise Linux WS/Desktop 5
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Increased Privileges -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2014-0106
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2014-0266.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Red Hat. It is recommended that administrators
running sudo check for an updated version of the software for their
operating system.
Revision History: March 11 2014: Unix, Linux platforms other then Red Hat included
March 11 2014: Initial Release
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Red Hat Security Advisory
Synopsis: Moderate: sudo security update
Advisory ID: RHSA-2014:0266-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0266.html
Issue date: 2014-03-10
CVE Names: CVE-2014-0106
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1. Summary:
An updated sudo package that fixes one security issue is now available for
Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having Moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
3. Description:
The sudo (superuser do) utility allows system administrators to give
certain users the ability to run commands as root.
A flaw was found in the way sudo handled its blacklist of environment
variables. When the "env_reset" option was disabled, a user permitted to
run certain commands via sudo could use this flaw to run such a command
with one of the blacklisted environment variables set, allowing them to run
an arbitrary command with the target user's privileges. (CVE-2014-0106)
Note: This issue does not affect the default configuration of the sudo
package as shipped with Red Hat Enterprise Linux 5.
Red Hat would like to thank Todd C. Miller for reporting this issue.
Upstream acknowledges Sebastien Macke as the original reporter.
All sudo users are advised to upgrade to this updated package, which
contains a backported patch to correct this issue.
4. Solution:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1071780 - CVE-2014-0106 sudo: certain environment variables not sanitized when env_reset is disabled
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/sudo-1.7.2p1-29.el5_10.src.rpm
i386:
sudo-1.7.2p1-29.el5_10.i386.rpm
sudo-debuginfo-1.7.2p1-29.el5_10.i386.rpm
x86_64:
sudo-1.7.2p1-29.el5_10.x86_64.rpm
sudo-debuginfo-1.7.2p1-29.el5_10.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/sudo-1.7.2p1-29.el5_10.src.rpm
i386:
sudo-1.7.2p1-29.el5_10.i386.rpm
sudo-debuginfo-1.7.2p1-29.el5_10.i386.rpm
ia64:
sudo-1.7.2p1-29.el5_10.ia64.rpm
sudo-debuginfo-1.7.2p1-29.el5_10.ia64.rpm
ppc:
sudo-1.7.2p1-29.el5_10.ppc.rpm
sudo-debuginfo-1.7.2p1-29.el5_10.ppc.rpm
s390x:
sudo-1.7.2p1-29.el5_10.s390x.rpm
sudo-debuginfo-1.7.2p1-29.el5_10.s390x.rpm
x86_64:
sudo-1.7.2p1-29.el5_10.x86_64.rpm
sudo-debuginfo-1.7.2p1-29.el5_10.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2014-0106.html
https://access.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2014 Red Hat, Inc.
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