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Red Hat: RHSA-2023:1987-01 Moderate: mod_ssl Security Patch

red hat
Calendar Grey December 3, 2013
Dist Redhat Esm H88
The latest update for the mod_nss package addresses a significant security vulnerability in Red Hat Enterprise Linux versions 5 and 6, bolstering safeguards.
An updated mod_nss package that fixes one security issue is 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/site/articles/11258

Summary

The mod_nss module provides strong cryptography for the Apache HTTP Server via the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, using the Network Security Services (NSS) security library.
A flaw was found in the way mod_nss handled the NSSVerifyClient setting for the per-directory context. When configured to not require a client certificate for the initial connection and only require it for a specific directory, mod_nss failed to enforce this requirement and allowed a client to access the directory when no valid client certificate was provided. (CVE-2013-4566)
Red Hat would like to thank Albert Smith of OUSD(AT&L) for reporting this issue.
All mod_nss users should upgrade to this updated package, which contains a backported patch to correct this issue. The httpd service must be restarted for this update to take effect.

Topics%20covered

Topics Covered

security advisory moderate security update security issue red hat apache module mod_nss

References

https://access.redhat.com/security/cve/CVE-2013-4566 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: mod_nss-1.0.8-8.el5_10.i386.rpm mod_nss-debuginfo-1.0.8-8.el5_10.i386.rpm
x86_64: mod_nss-1.0.8-8.el5_10.x86_64.rpm mod_nss-debuginfo-1.0.8-8.el5_10.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: mod_nss-1.0.8-8.el5_10.i386.rpm mod_nss-debuginfo-1.0.8-8.el5_10.i386.rpm
ia64: mod_nss-1.0.8-8.el5_10.ia64.rpm mod_nss-debuginfo-1.0.8-8.el5_10.ia64.rpm
ppc: mod_nss-1.0.8-8.el5_10.ppc.rpm mod_nss-debuginfo-1.0.8-8.el5_10.ppc.rpm
s390x: mod_nss-1.0.8-8.el5_10.s390x.rpm mod_nss-debuginfo-1.0.8-8.el5_10.s390x.rpm
x86_64: mod_nss-1.0.8-8.el5_10.x86_64.rpm mod_nss-debuginfo-1.0.8-8.el5_10.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: mod_nss-1.0.8-19.el6_5.i686.rpm mod_nss-debuginfo-1.0.8-19.el6_5.i686.rpm
x86_64: mod_nss-1.0.8-19.el6_5.x86_64.rpm mod_nss-debuginfo-1.0.8-19.el6_5.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: mod_nss-1.0.8-19.el6_5.x86_64.rpm mod_nss-debuginfo-1.0.8-19.el6_5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386: mod_nss-1.0.8-19.el6_5.i686.rpm mod_nss-debuginfo-1.0.8-19.el6_5.i686.rpm
ppc64: mod_nss-1.0.8-19.el6_5.ppc64.rpm mod_nss-debuginfo-1.0.8-19.el6_5.ppc64.rpm
s390x: mod_nss-1.0.8-19.el6_5.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2013:1779-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:1779.html
Issue date: 2013-12-03

Topic

An updated mod_nss package that fixes one security issue is now availablefor Red Hat Enterprise Linux 5 and 6.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 moderate security update security issue red hat apache module mod_nss

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

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

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

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

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

Bugs Fixed

1016832 - CVE-2013-4566 mod_nss: incorrect handling of NSSVerifyClient in directory context

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