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Red Hat 5: RHSA-2010:0811-01 Important: CUPS Memory Issues & Escalation

red hat
Calendar Grey October 28, 2010
Dist Redhat Esm H88
Significant cups security enhancement released for Red Hat tackling severe memory and privilege vulnerabilities classified as critical.
Updated cups packages that fix two security issues are 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 Common UNIX Printing System (CUPS) provides a portable printing layer for UNIX operating systems.
A use-after-free flaw was found in the way the CUPS server parsed Internet Printing Protocol (IPP) packets. A malicious user able to send IPP requests to the CUPS server could use this flaw to crash the CUPS server or, potentially, execute arbitrary code with the privileges of the CUPS server. (CVE-2010-2941)
A possible privilege escalation flaw was found in CUPS. An unprivileged process running as the "lp" user (such as a compromised external filter program spawned by the CUPS server) could trick the CUPS server into overwriting arbitrary files as the root user. (CVE-2010-2431)
Red Hat would like to thank Emmanuel Bouillon of NATO C3 Agency for reporting the CVE-2010-2941 issue.
Users of cups are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the cupsd daemon will be restarted automatically.

Topics%20covered

Topics Covered

security advisory Red Hat privilege escalation important memory issue CUPS

References

https://access.redhat.com/security/cve/CVE-2010-2431 https://access.redhat.com/security/cve/CVE-2010-2941 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: cups-1.3.7-18.el5_5.8.i386.rpm cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm cups-libs-1.3.7-18.el5_5.8.i386.rpm cups-lpd-1.3.7-18.el5_5.8.i386.rpm
x86_64: cups-1.3.7-18.el5_5.8.x86_64.rpm cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm cups-debuginfo-1.3.7-18.el5_5.8.x86_64.rpm cups-libs-1.3.7-18.el5_5.8.i386.rpm cups-libs-1.3.7-18.el5_5.8.x86_64.rpm cups-lpd-1.3.7-18.el5_5.8.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm cups-devel-1.3.7-18.el5_5.8.i386.rpm
x86_64: cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm cups-debuginfo-1.3.7-18.el5_5.8.x86_64.rpm cups-devel-1.3.7-18.el5_5.8.i386.rpm cups-devel-1.3.7-18.el5_5.8.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: cups-1.3.7-18.el5_5.8.i386.rpm cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm cups-devel-1.3.7-18.el5_5.8.i386.rpm cups-libs-1.3.7-18.el5_5.8.i386.rpm cups-lpd-1.3.7-18.el5_5.8.i386.rpm
ia64: cups-1.3.7-18.el5_5.8.ia64.rpm cups-debuginfo-1.3.7-18.el5_5.8.i386.rpm cups-debuginfo-1.3.7-18.el5_5.8.ia64.rpm cups-devel-1.3.7-18.el5_5.8.ia64.rpm cups-libs-1.3.7-18.el5_5.8.i386.rpm cups-libs-1.3.7-18.el5_5.8.ia64.rpm cups-lpd-1.3.7-18.el5_5.8.ia64.rpm
ppc: cups-1.3.7-18.el5_5.8.ppc.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2010:0811-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0811.html
Issue date: 2010-10-28

Topic

Updated cups packages that fix two security issues are now available forRed Hat Enterprise Linux 5.The Red Hat Security Response Team has rated this update as havingimportant security impact. Common Vulnerability Scoring System (CVSS) basescores, which give detailed severity ratings, are available for eachvulnerability from the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat privilege escalation important memory issue CUPS

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

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

605397 - CVE-2010-2431 cups: latent privilege escalation vulnerability

624438 - CVE-2010-2941 cups: cupsd memory corruption vulnerability

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