Red Hat Security Advisory: nss and nspr security, bug fix, and enhancement update Security Advisory secalert@redhat.com Red Hat Security Response Team RHSA-2012:1090 Final 1 1 2012-07-17T18:02:00Z Current version 2012-07-17T18:02:00Z 2012-07-17T18:02:00Z Red Hat rhsa-to-cvrf 1.0.1484 2012-07-17T18:19:01Z Updated nss and nspr packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate 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. Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-enabled client and server applications. Netscape Portable Runtime (NSPR) provides platform independence for non-GUI operating system facilities. A flaw was found in the way the ASN.1 (Abstract Syntax Notation One) decoder in NSS handled zero length items. This flaw could cause the decoder to incorrectly skip or replace certain items with a default value, or could cause an application to crash if, for example, it received a specially-crafted OCSP (Online Certificate Status Protocol) response. (CVE-2012-0441) It was found that a Certificate Authority (CA) issued a subordinate CA certificate to its customer, that could be used to issue certificates for any name. This update renders the subordinate CA certificate as untrusted. (BZ#798533) Note: The BZ#798533 fix only applies to applications using the NSS Builtin Object Token. It does not render the certificates untrusted for applications that use the NSS library, but do not use the NSS Builtin Object Token. In addition, the nspr package has been upgraded to upstream version 4.9.1, and the nss package has been upgraded to upstream version 3.13.5. These updates provide a number of bug fixes and enhancements over the previous versions. (BZ#834220, BZ#834219) All NSS and NSPR users should upgrade to these updated packages, which correct these issues and add these enhancements. After installing the update, applications using NSS and NSPR must be restarted for the changes to take effect. Please see https://www.redhat.com/footer/terms-of-use.html Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate https://rhn.redhat.com/errata/RHSA-2012-1090.html https://rhn.redhat.com/errata/RHSA-2012-1090.html https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/security/updates/classification/#moderate http://www.mozilla.org/security/announce/2012/mfsa2012-39.html http://www.mozilla.org/security/announce/2012/mfsa2012-39.html https://bugzilla.redhat.com/show_bug.cgi?id=798533 https://bugzilla.redhat.com/show_bug.cgi?id=798533 https://bugzilla.redhat.com/show_bug.cgi?id=834219 https://bugzilla.redhat.com/show_bug.cgi?id=834219 https://bugzilla.redhat.com/show_bug.cgi?id=834220 https://bugzilla.redhat.com/show_bug.cgi?id=834220 Red Hat Enterprise Linux Desktop (v. 5 client) Red Hat Enterprise Linux (v. 5 server) RHEL Desktop Workstation (v. 5 client) nspr-4.9.1-4.el5_8.src.rpm nss-3.13.5-4.el5_8.src.rpm nspr-4.9.1-4.el5_8 as a component of Red Hat Enterprise Linux Desktop (v. 5 client) nss-3.13.5-4.el5_8 as a component of Red Hat Enterprise Linux Desktop (v. 5 client) nspr-4.9.1-4.el5_8 as a component of Red Hat Enterprise Linux (v. 5 server) nss-3.13.5-4.el5_8 as a component of Red Hat Enterprise Linux (v. 5 server) nspr-4.9.1-4.el5_8 as a component of RHEL Desktop Workstation (v. 5 client) nss-3.13.5-4.el5_8 as a component of RHEL Desktop Workstation (v. 5 client) A flaw was found in the way the ASN.1 (Abstract Syntax Notation One) decoder in NSS handled zero length items. This flaw could cause the decoder to incorrectly skip or replace certain items with a default value, or could cause an application to crash if, for example, it received a specially-crafted OCSP (Online Certificate Status Protocol) response. 2012-06-03T00:00:00Z 2012-06-05T00:00:00Z CVE-2012-0441 5Client-5.8.Z:nspr-4.9.1-4.el5_8 5Client-5.8.Z:nss-3.13.5-4.el5_8 5Client-Workstation-5.8.Z:nspr-4.9.1-4.el5_8 5Client-Workstation-5.8.Z:nss-3.13.5-4.el5_8 5Server-5.8.Z:nspr-4.9.1-4.el5_8 5Server-5.8.Z:nss-3.13.5-4.el5_8 Moderate 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P 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/knowledge/articles/11258 https://rhn.redhat.com/errata/RHSA-2012-1090.html https://www.redhat.com/security/data/cve/CVE-2012-0441.html CVE-2012-0441 https://bugzilla.redhat.com/show_bug.cgi?id=827833 bz#827833: CVE-2012-0441 nss: NSS parsing errors with zero length items