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Important: sudo security update

Advisory:	RHSA-2010:0675-1
Type:	Security Advisory
Severity:	Important
Issued on:	2010-09-07
Last updated on:	2010-09-07
Affected Products:	Red Hat Enterprise Linux (v. 5 server) Red Hat Enterprise Linux Desktop (v. 5 client)
CVEs (cve.mitre.org):	CVE-2010-2956

Details

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
important 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.

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 Runas specifications containing
both a user and a group list. If a local user were authorized by the
sudoers file to perform their sudo commands with the privileges of a
specified user and group, they could use this flaw to run those commands
with the privileges of either an arbitrary user or group on the system.
(CVE-2010-2956)

Red Hat would like to thank Markus Wuethrich of Swiss Post - PostFinance
for reporting this issue.

Users of sudo should upgrade to this updated package, which contains a
backported patch to correct this issue.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Updated packages

Red Hat Enterprise Linux (v. 5 server)

SRPMS:
sudo-1.7.2p1-8.el5_5.src.rpm File outdated by: RHBA-2013:0616	`MD5: 2f4f2e7c8f10db4097f8fa3ab77d3920 SHA-256: 1f535f04b5f54350d8ba05d4ddb1920c38c80287c026e12e716be79789d03586`

IA-32:
sudo-1.7.2p1-8.el5_5.i386.rpm File outdated by: RHBA-2013:0616	`MD5: 44942bedd8c3465d887659723018e10c SHA-256: 707c9070c311e3c3d3ece156e8e472b698da7a73f5a3ac256d63c4da0182a728`

IA-64:
sudo-1.7.2p1-8.el5_5.ia64.rpm File outdated by: RHBA-2013:0616	`MD5: e8b3434735d4002146aa62972a239027 SHA-256: 55acf31601016184c02a6de41bc2931228c8907e760081cc05b5dcf5b66526e1`

PPC:
sudo-1.7.2p1-8.el5_5.ppc.rpm File outdated by: RHBA-2013:0616	`MD5: 86862936f6a0f6d75c15ea78fca89b73 SHA-256: 615611bc859383f67ba9dba0f9033b408f59d459c0dc04b030edee78306a003b`

s390x:
sudo-1.7.2p1-8.el5_5.s390x.rpm File outdated by: RHBA-2013:0616	`MD5: b9a2a34c496ba28afb40013c7cef281c SHA-256: 010092b8706f3da3fb95195bf04eda942543fcd54c1a07d44837452c4ee1fd75`

x86_64:
sudo-1.7.2p1-8.el5_5.x86_64.rpm File outdated by: RHBA-2013:0616	`MD5: 295f76fe3e05591e1a333dba9cf15e92 SHA-256: 42d6a41f7e01a63906c49dd203237f84295ea0801812a5c1d909285dd7c55c5b`

Red Hat Enterprise Linux Desktop (v. 5 client)

SRPMS:
sudo-1.7.2p1-8.el5_5.src.rpm File outdated by: RHBA-2013:0616	`MD5: 2f4f2e7c8f10db4097f8fa3ab77d3920 SHA-256: 1f535f04b5f54350d8ba05d4ddb1920c38c80287c026e12e716be79789d03586`

IA-32:
sudo-1.7.2p1-8.el5_5.i386.rpm File outdated by: RHBA-2013:0616	`MD5: 44942bedd8c3465d887659723018e10c SHA-256: 707c9070c311e3c3d3ece156e8e472b698da7a73f5a3ac256d63c4da0182a728`

x86_64:
sudo-1.7.2p1-8.el5_5.x86_64.rpm File outdated by: RHBA-2013:0616	`MD5: 295f76fe3e05591e1a333dba9cf15e92 SHA-256: 42d6a41f7e01a63906c49dd203237f84295ea0801812a5c1d909285dd7c55c5b`

(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

628628 - CVE-2010-2956 sudo: incorrect handling of RunAs specification with both user and group lists

References

https://www.redhat.com/security/data/cve/CVE-2010-2956.html
http://www.redhat.com/security/updates/classification/#important

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