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Red Hat: RHSA-2014:1974-01 Important: RPM Install Exploit Fix

red hat
Calendar Grey December 9, 2014
Dist Redhat Esm H88
Newly released RPM packages for Red Hat Enterprise Linux feature essential patches for security vulnerabilities. It is advisable to perform the upgrade for enhanced data protection.
Updated rpm packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6

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/articles/11258

Summary

The RPM Package Manager (RPM) is a powerful command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages. Each software package consists of an archive of files along with information about the package such as its version, description, and other information.
It was found that RPM wrote file contents to the target installation directory under a temporary name, and verified its cryptographic signature only after the temporary file has been written completely. Under certain conditions, the system interprets the unverified temporary file contents and extracts commands from it. This could allow an attacker to modify signed RPM files in such a way that they would execute code chosen by the attacker during package installation. (CVE-2013-6435)
This issue was discovered by Florian Weimer of Red Hat Product Security.
All rpm users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications linked against the RPM library must be restarted for this update to take effect.

Topics%20covered

Topics Covered

security advisory red hat exploit patch important rpm install

References

https://access.redhat.com/security/cve/CVE-2013-6435 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: rpm-4.4.2.3-36.el5_11.src.rpm
i386: popt-1.10.2.3-36.el5_11.i386.rpm rpm-4.4.2.3-36.el5_11.i386.rpm rpm-debuginfo-4.4.2.3-36.el5_11.i386.rpm rpm-libs-4.4.2.3-36.el5_11.i386.rpm rpm-python-4.4.2.3-36.el5_11.i386.rpm
x86_64: popt-1.10.2.3-36.el5_11.i386.rpm popt-1.10.2.3-36.el5_11.x86_64.rpm rpm-4.4.2.3-36.el5_11.x86_64.rpm rpm-debuginfo-4.4.2.3-36.el5_11.i386.rpm rpm-debuginfo-4.4.2.3-36.el5_11.x86_64.rpm rpm-libs-4.4.2.3-36.el5_11.i386.rpm rpm-libs-4.4.2.3-36.el5_11.x86_64.rpm rpm-python-4.4.2.3-36.el5_11.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source: rpm-4.4.2.3-36.el5_11.src.rpm
i386: rpm-apidocs-4.4.2.3-36.el5_11.i386.rpm rpm-build-4.4.2.3-36.el5_11.i386.rpm rpm-debuginfo-4.4.2.3-36.el5_11.i386.rpm rpm-devel-4.4.2.3-36.el5_11.i386.rpm
x86_64: rpm-apidocs-4.4.2.3-36.el5_11.x86_64.rpm rpm-build-4.4.2.3-36.el5_11.x86_64.rpm rpm-debuginfo-4.4.2.3-36.el5_11.i386.rpm rpm-debuginfo-4.4.2.3-36.el5_11.x86_64.rpm rpm-devel-4.4.2.3-36.el5_11.i386.rpm rpm-devel-4.4.2.3-36.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: rpm-4.4.2.3-36.el5_11.src.rpm
i386: popt-1.10.2.3-36.el5_11.i386.rpm rpm-4.4.2.3-36.el5_11.i386.rpm rpm-apidocs-4.4.2.3-36.el5_11.i386.rpm rpm-build-4.4.2.3-36.el5_11.i386.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:1974-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2014:1974.html
Issue date: 2014-12-09

Topic

Updated rpm packages that fix one security issue are now available for RedHat Enterprise Linux 5 and 6.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory red hat exploit patch important rpm install

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

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - noarch

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - noarch

Bugs Fixed

1039811 - CVE-2013-6435 rpm: race condition during the installation process

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