[RHSA-2014:1246-01] Moderate: nss and nspr security, bug fix, and enhancement update

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Red Hat Security Advisory

 

Synopsis: Moderate: nss and nspr security, bug fix, and enhancement update

Advisory ID: RHSA-2014:1246-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-1246.html

Issue date: 2014-09-16

CVE Names: CVE-2013-1740 CVE-2014-1490 CVE-2014-1491

CVE-2014-1492 CVE-2014-1545

=====================================================================

 

1. Summary:

 

Updated nss and nspr packages that fix multiple security issues, several

bugs, and add various enhancements are now available for Red Hat Enterprise

Linux 5.

 

Red Hat Product Security has rated this update as having Moderate security

impact. Common Vulnerability Scoring System (CVSS) base scores, which give

detailed severity ratings, are available for each vulnerability from the

CVE links in the References section.

 

2. 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 Workstation (v. 5 client) - i386, x86_64

 

3. Description:

 

Network Security Services (NSS) is a set of libraries designed to support

the cross-platform development of security-enabled client and server

applications.

 

A flaw was found in the way TLS False Start was implemented in NSS.

An attacker could use this flaw to potentially return unencrypted

information from the server. (CVE-2013-1740)

 

A race condition was found in the way NSS implemented session ticket

handling as specified by RFC 5077. An attacker could use this flaw to crash

an application using NSS or, in rare cases, execute arbitrary code with the

privileges of the user running that application. (CVE-2014-1490)

 

It was found that NSS accepted weak Diffie-Hellman Key exchange (DHKE)

parameters. This could possibly lead to weak encryption being used in

communication between the client and the server. (CVE-2014-1491)

 

An out-of-bounds write flaw was found in NSPR. A remote attacker could

potentially use this flaw to crash an application using NSPR or, possibly,

execute arbitrary code with the privileges of the user running that

application. This NSPR flaw was not exposed to web content in any shipped

version of Firefox. (CVE-2014-1545)

 

It was found that the implementation of Internationalizing Domain Names in

Applications (IDNA) hostname matching in NSS did not follow the RFC 6125

recommendations. This could lead to certain invalid certificates with

international characters to be accepted as valid. (CVE-2014-1492)

 

Red Hat would like to thank the Mozilla project for reporting the

CVE-2014-1490, CVE-2014-1491, and CVE-2014-1545 issues. Upstream

acknowledges Brian Smith as the original reporter of CVE-2014-1490, Antoine

Delignat-Lavaud and Karthikeyan Bhargavan as the original reporters of

CVE-2014-1491, and Abhishek Arya as the original reporter of CVE-2014-1545.

 

The nss and nspr packages have been upgraded to upstream version 3.16.1 and

4.10.6 respectively, which provide a number of bug fixes and enhancements

over the previous versions. (BZ#1110857, BZ#1110860)

 

This update also fixes the following bugs:

 

* Previously, when the output.log file was not present on the system, the

shell in the Network Security Services (NSS) specification handled test

failures incorrectly as false positive test results. Consequently, certain

utilities, such as "grep", could not handle failures properly. This update

improves error detection in the specification file, and "grep" and other

utilities now handle missing files or crashes as intended. (BZ#1035281)

 

* Prior to this update, a subordinate Certificate Authority (CA) of the

ANSSI agency incorrectly issued an intermediate certificate installed on a

network monitoring device. As a consequence, the monitoring device was

enabled to act as an MITM (Man in the Middle) proxy performing traffic

management of domain names or IP addresses that the certificate holder did

not own or control. The trust in the intermediate certificate to issue the

certificate for an MITM device has been revoked, and such a device can no

longer be used for MITM attacks. (BZ#1042684)

 

* Due to a regression, MD5 certificates were rejected by default because

Network Security Services (NSS) did not trust MD5 certificates. With this

update, MD5 certificates are supported in Red Hat Enterprise Linux 5.

(BZ#11015864)

 

Users of nss and nspr are advised to upgrade to these updated packages,

which correct these issues and add these enhancements.

 

4. 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

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1035281 - Suboptimal shell code in nss.spec

1053725 - CVE-2013-1740 nss: false start PR_Recv information disclosure security issue

1060953 - CVE-2014-1490 nss: TOCTOU, potential use-after-free in libssl's session ticket processing (MFSA 2014-12)

1060955 - CVE-2014-1491 nss: Do not allow p-1 as a public DH value (MFSA 2014-12)

1079851 - CVE-2014-1492 nss: IDNA hostname matching code does not follow RFC 6125 recommendation (MFSA 2014-45)

1107432 - CVE-2014-1545 Mozilla: Out of bounds write in NSPR (MFSA 2014-55)

1110857 - Rebase nspr in RHEL 5.11 to NSPR 4.10.6 (required for FF31)

1110860 - Rebase nss in RHEL 5.11 to NSS 3.16.1 (required for FF 31)

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 5 client):

 

Source:

nss-3.16.1-2.el5.src.rpm

 

i386:

nss-3.16.1-2.el5.i386.rpm

nss-debuginfo-3.16.1-2.el5.i386.rpm

nss-tools-3.16.1-2.el5.i386.rpm

 

x86_64:

nss-3.16.1-2.el5.i386.rpm

nss-3.16.1-2.el5.x86_64.rpm

nss-debuginfo-3.16.1-2.el5.i386.rpm

nss-debuginfo-3.16.1-2.el5.x86_64.rpm

nss-tools-3.16.1-2.el5.x86_64.rpm

 

Red Hat Enterprise Linux Desktop Workstation (v. 5 client):

 

Source:

nss-3.16.1-2.el5.src.rpm

 

i386:

nss-debuginfo-3.16.1-2.el5.i386.rpm

nss-devel-3.16.1-2.el5.i386.rpm

nss-pkcs11-devel-3.16.1-2.el5.i386.rpm

 

x86_64:

nss-debuginfo-3.16.1-2.el5.i386.rpm

nss-debuginfo-3.16.1-2.el5.x86_64.rpm

nss-devel-3.16.1-2.el5.i386.rpm

nss-devel-3.16.1-2.el5.x86_64.rpm

nss-pkcs11-devel-3.16.1-2.el5.i386.rpm

nss-pkcs11-devel-3.16.1-2.el5.x86_64.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

nss-3.16.1-2.el5.src.rpm

 

i386:

nss-3.16.1-2.el5.i386.rpm

nss-debuginfo-3.16.1-2.el5.i386.rpm

nss-devel-3.16.1-2.el5.i386.rpm

nss-pkcs11-devel-3.16.1-2.el5.i386.rpm

nss-tools-3.16.1-2.el5.i386.rpm

 

ia64:

nss-3.16.1-2.el5.i386.rpm

nss-3.16.1-2.el5.ia64.rpm

nss-debuginfo-3.16.1-2.el5.i386.rpm

nss-debuginfo-3.16.1-2.el5.ia64.rpm

nss-devel-3.16.1-2.el5.ia64.rpm

nss-pkcs11-devel-3.16.1-2.el5.ia64.rpm

nss-tools-3.16.1-2.el5.ia64.rpm

 

ppc:

nss-3.16.1-2.el5.ppc.rpm

nss-3.16.1-2.el5.ppc64.rpm

nss-debuginfo-3.16.1-2.el5.ppc.rpm

nss-debuginfo-3.16.1-2.el5.ppc64.rpm

nss-devel-3.16.1-2.el5.ppc.rpm

nss-devel-3.16.1-2.el5.ppc64.rpm

nss-pkcs11-devel-3.16.1-2.el5.ppc.rpm

nss-pkcs11-devel-3.16.1-2.el5.ppc64.rpm

nss-tools-3.16.1-2.el5.ppc.rpm

 

s390x:

nss-3.16.1-2.el5.s390.rpm

nss-3.16.1-2.el5.s390x.rpm

nss-debuginfo-3.16.1-2.el5.s390.rpm

nss-debuginfo-3.16.1-2.el5.s390x.rpm

nss-devel-3.16.1-2.el5.s390.rpm

nss-devel-3.16.1-2.el5.s390x.rpm

nss-pkcs11-devel-3.16.1-2.el5.s390.rpm

nss-pkcs11-devel-3.16.1-2.el5.s390x.rpm

nss-tools-3.16.1-2.el5.s390x.rpm

 

x86_64:

nss-3.16.1-2.el5.i386.rpm

nss-3.16.1-2.el5.x86_64.rpm

nss-debuginfo-3.16.1-2.el5.i386.rpm

nss-debuginfo-3.16.1-2.el5.x86_64.rpm

nss-devel-3.16.1-2.el5.i386.rpm

nss-devel-3.16.1-2.el5.x86_64.rpm

nss-pkcs11-devel-3.16.1-2.el5.i386.rpm

nss-pkcs11-devel-3.16.1-2.el5.x86_64.rpm

nss-tools-3.16.1-2.el5.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

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2013-1740.html

https://www.redhat.com/security/data/cve/CVE-2014-1490.html

https://www.redhat.com/security/data/cve/CVE-2014-1491.html

https://www.redhat.com/security/data/cve/CVE-2014-1492.html

https://www.redhat.com/security/data/cve/CVE-2014-1545.html

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2014 Red Hat, Inc.

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