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Red Hat: RHSA-2010:0475-01 Moderate: Sudo Security Issue

red hat
Calendar Grey June 15, 2010
Dist Redhat Esm H88
The latest version of the sudo package resolves a notable security concern in Red Hat Enterprise Linux 5. Users are advised to update promptly.
An updated sudo package that fixes one security issue is now available for Red Hat Enterprise Linux 5

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

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.

Topics%20covered

Topics Covered

security advisory security issue Red Hat moderate threat sudo

References

https://access.redhat.com/security/cve/CVE-2010-1646 https://access.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://access.redhat.com/security/team/key#package


Advisory ID: RHSA-2010:0475-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0475.html
Issue date: 2010-06-15

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.

Topics%20covered

Topics Covered

security advisory security issue Red Hat moderate threat sudo

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

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