Red Hat: 2010:0475-01: sudo: Moderate Advisory
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 the presence of duplicated
environment variables. A local user authorized to run commands using sudo
could use this flaw to set additional values for the environment variables
set by sudo, which could result in those values being used by the executed
command instead of the values set by sudo. This could possibly lead to
certain intended restrictions being bypassed, such as the secure_path
setting. (CVE-2010-1646)
Red Hat would like to thank Anders Kaseorg and Evan Broder of Ksplice, Inc.
for responsibly reporting this issue.
Users of sudo should 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
References
https://www.redhat.com/security/data/cve/CVE-2010-1646.html http://www.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386:
sudo-1.7.2p1-7.el5_5.i386.rpm
sudo-debuginfo-1.7.2p1-7.el5_5.i386.rpm
x86_64:
sudo-1.7.2p1-7.el5_5.x86_64.rpm
sudo-debuginfo-1.7.2p1-7.el5_5.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386:
sudo-1.7.2p1-7.el5_5.i386.rpm
sudo-debuginfo-1.7.2p1-7.el5_5.i386.rpm
ia64:
sudo-1.7.2p1-7.el5_5.ia64.rpm
sudo-debuginfo-1.7.2p1-7.el5_5.ia64.rpm
ppc:
sudo-1.7.2p1-7.el5_5.ppc.rpm
sudo-debuginfo-1.7.2p1-7.el5_5.ppc.rpm
s390x:
sudo-1.7.2p1-7.el5_5.s390x.rpm
sudo-debuginfo-1.7.2p1-7.el5_5.s390x.rpm
x86_64:
sudo-1.7.2p1-7.el5_5.x86_64.rpm
sudo-debuginfo-1.7.2p1-7.el5_5.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://www.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
598154 - CVE-2010-1646 sudo: insufficient environment sanitization issue