RedHat: RHSA-2014-0266:01 Moderate: sudo security update
Summary
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.
Summary
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
References
https://www.redhat.com/security/data/cve/CVE-2014-0106.html https://access.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
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:
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
Topic
An updated sudo package that fixes one security issue is now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as having Moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.
Topic
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
Bugs Fixed
1071780 - CVE-2014-0106 sudo: certain environment variables not sanitized when env_reset is disabled