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Red Hat 7: RHSA-2017:1365-03 Important NSS Null Pointer Fix

red hat
Calendar Grey May 30, 2017
Scroller Redhat
Crucial nss patch released for Red Hat Enterprise Linux 7 addressing a zero reference flaw impacting server software.
An update for nss is now available for Red Hat Enterprise Linux 7

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.

Summary

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)

Topics%20covered

Topics Covered

security advisory Red Hat security fix important null pointer server application nss

References

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

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


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

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

Topic

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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat security fix important null pointer server application nss

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

Bugs Fixed

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

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