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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: nss security and bug fix update
Advisory ID:       RHSA-2017:1365-03
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:1365
Issue date:        2017-05-30
CVE Names:         CVE-2017-7502 
=====================================================================

1. Summary:

An update for nss is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le,
 s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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.

Security Fix(es):

* A null pointer dereference flaw was found in the way NSS handled empty
SSLv2 messages. An attacker could use this flaw to crash a server
application compiled against the NSS library. (CVE-2017-7502)

Bug Fix(es):

* The Network Security Services (NSS) code and Certificate Authority (CA)
list have been updated to meet the recommendations as published with the
latest Mozilla Firefox Extended Support Release (ESR). The updated CA list
improves compatibility with the certificates that are used in the Internet
Public Key Infrastructure (PKI). To avoid certificate validation refusals,
Red Hat recommends installing the updated CA list on June 12, 2017.
(BZ#1451421)

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, applications using NSS (for example, Firefox)
must be restarted for this update to take effect.

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

1446631 - CVE-2017-7502 nss: Null pointer dereference when handling empty SSLv2
 messages

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
nss-3.28.4-1.2.el7_3.src.rpm

x86_64:
nss-3.28.4-1.2.el7_3.i686.rpm
nss-3.28.4-1.2.el7_3.x86_64.rpm
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-sysinit-3.28.4-1.2.el7_3.x86_64.rpm
nss-tools-3.28.4-1.2.el7_3.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-devel-3.28.4-1.2.el7_3.i686.rpm
nss-devel-3.28.4-1.2.el7_3.x86_64.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.i686.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
nss-3.28.4-1.2.el7_3.src.rpm

x86_64:
nss-3.28.4-1.2.el7_3.i686.rpm
nss-3.28.4-1.2.el7_3.x86_64.rpm
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-sysinit-3.28.4-1.2.el7_3.x86_64.rpm
nss-tools-3.28.4-1.2.el7_3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-devel-3.28.4-1.2.el7_3.i686.rpm
nss-devel-3.28.4-1.2.el7_3.x86_64.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.i686.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
nss-3.28.4-1.2.el7_3.src.rpm

aarch64:
nss-3.28.4-1.2.el7_3.aarch64.rpm
nss-debuginfo-3.28.4-1.2.el7_3.aarch64.rpm
nss-devel-3.28.4-1.2.el7_3.aarch64.rpm
nss-sysinit-3.28.4-1.2.el7_3.aarch64.rpm
nss-tools-3.28.4-1.2.el7_3.aarch64.rpm

ppc64:
nss-3.28.4-1.2.el7_3.ppc.rpm
nss-3.28.4-1.2.el7_3.ppc64.rpm
nss-debuginfo-3.28.4-1.2.el7_3.ppc.rpm
nss-debuginfo-3.28.4-1.2.el7_3.ppc64.rpm
nss-devel-3.28.4-1.2.el7_3.ppc.rpm
nss-devel-3.28.4-1.2.el7_3.ppc64.rpm
nss-sysinit-3.28.4-1.2.el7_3.ppc64.rpm
nss-tools-3.28.4-1.2.el7_3.ppc64.rpm

ppc64le:
nss-3.28.4-1.2.el7_3.ppc64le.rpm
nss-debuginfo-3.28.4-1.2.el7_3.ppc64le.rpm
nss-devel-3.28.4-1.2.el7_3.ppc64le.rpm
nss-sysinit-3.28.4-1.2.el7_3.ppc64le.rpm
nss-tools-3.28.4-1.2.el7_3.ppc64le.rpm

s390x:
nss-3.28.4-1.2.el7_3.s390.rpm
nss-3.28.4-1.2.el7_3.s390x.rpm
nss-debuginfo-3.28.4-1.2.el7_3.s390.rpm
nss-debuginfo-3.28.4-1.2.el7_3.s390x.rpm
nss-devel-3.28.4-1.2.el7_3.s390.rpm
nss-devel-3.28.4-1.2.el7_3.s390x.rpm
nss-sysinit-3.28.4-1.2.el7_3.s390x.rpm
nss-tools-3.28.4-1.2.el7_3.s390x.rpm

x86_64:
nss-3.28.4-1.2.el7_3.i686.rpm
nss-3.28.4-1.2.el7_3.x86_64.rpm
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-devel-3.28.4-1.2.el7_3.i686.rpm
nss-devel-3.28.4-1.2.el7_3.x86_64.rpm
nss-sysinit-3.28.4-1.2.el7_3.x86_64.rpm
nss-tools-3.28.4-1.2.el7_3.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

aarch64:
nss-debuginfo-3.28.4-1.2.el7_3.aarch64.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.aarch64.rpm

ppc64:
nss-debuginfo-3.28.4-1.2.el7_3.ppc.rpm
nss-debuginfo-3.28.4-1.2.el7_3.ppc64.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.ppc.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.ppc64.rpm

ppc64le:
nss-debuginfo-3.28.4-1.2.el7_3.ppc64le.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.ppc64le.rpm

s390x:
nss-debuginfo-3.28.4-1.2.el7_3.s390.rpm
nss-debuginfo-3.28.4-1.2.el7_3.s390x.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.s390.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.s390x.rpm

x86_64:
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.i686.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
nss-3.28.4-1.2.el7_3.src.rpm

x86_64:
nss-3.28.4-1.2.el7_3.i686.rpm
nss-3.28.4-1.2.el7_3.x86_64.rpm
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-devel-3.28.4-1.2.el7_3.i686.rpm
nss-devel-3.28.4-1.2.el7_3.x86_64.rpm
nss-sysinit-3.28.4-1.2.el7_3.x86_64.rpm
nss-tools-3.28.4-1.2.el7_3.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
nss-debuginfo-3.28.4-1.2.el7_3.i686.rpm
nss-debuginfo-3.28.4-1.2.el7_3.x86_64.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.i686.rpm
nss-pkcs11-devel-3.28.4-1.2.el7_3.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/

7. References:

https://access.redhat.com/security/cve/CVE-2017-7502
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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