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RedHat: RHSA-2019-4190-01 Important: NSS Out-Of-Bounds Security Fix

red hat
Calendar Grey December 10, 2019
Dist Redhat Esm H88
Crucial security patch for Red Hat's nss and nss-softokn focusing on severe vulnerabilities impacting business Linux systems.
An update for nss, nss-softokn, and nss-util 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.
The nss-softokn package provides the Network Security Services Softoken Cryptographic Module.
The nss-util packages provide utilities for use with the Network Security Services (NSS) libraries.
Security Fix(es):
* nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate (CVE-2019-11745)
* nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault (CVE-2019-11729)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory red hat important segmentation fault out-of-bounds nss nss-softokn

References

https://access.redhat.com/security/cve/CVE-2019-11729 https://access.redhat.com/security/cve/CVE-2019-11745 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: nss-3.44.0-7.el7_7.src.rpm nss-softokn-3.44.0-8.el7_7.src.rpm nss-util-3.44.0-4.el7_7.src.rpm
x86_64: nss-3.44.0-7.el7_7.i686.rpm nss-3.44.0-7.el7_7.x86_64.rpm nss-debuginfo-3.44.0-7.el7_7.i686.rpm nss-debuginfo-3.44.0-7.el7_7.x86_64.rpm nss-softokn-3.44.0-8.el7_7.i686.rpm nss-softokn-3.44.0-8.el7_7.x86_64.rpm nss-softokn-debuginfo-3.44.0-8.el7_7.i686.rpm nss-softokn-debuginfo-3.44.0-8.el7_7.x86_64.rpm nss-softokn-freebl-3.44.0-8.el7_7.i686.rpm nss-softokn-freebl-3.44.0-8.el7_7.x86_64.rpm nss-sysinit-3.44.0-7.el7_7.x86_64.rpm nss-tools-3.44.0-7.el7_7.x86_64.rpm nss-util-3.44.0-4.el7_7.i686.rpm nss-util-3.44.0-4.el7_7.x86_64.rpm nss-util-debuginfo-3.44.0-4.el7_7.i686.rpm nss-util-debuginfo-3.44.0-4.el7_7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: nss-debuginfo-3.44.0-7.el7_7.i686.rpm nss-debuginfo-3.44.0-7.el7_7.x86_64.rpm nss-devel-3.44.0-7.el7_7.i686.rpm nss-devel-3.44.0-7.el7_7.x86_64.rpm nss-pkcs11-devel-3.44.0-7.el7_7.i686.rpm nss-pkcs11-devel-3.44.0-7.el7_7.x86_64.rpm nss-softokn-debuginfo-3.44.0-8.el7_7.i686.rpm nss-softokn-debuginfo-3.44.0-8.el7_7.x86_64.rpm nss-softokn-devel-3.44.0-8.el7_7.i686.rpm nss-softokn-devel-3.44.0-8.el7_7.x86_64.rpm nss-softokn-freebl-devel-3.44.0-8.el7_7.i686.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:4190-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:4190
Issue date: 2019-12-10

Topic

An update for nss, nss-softokn, and nss-util is now available for Red HatEnterprise 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 important segmentation fault out-of-bounds nss nss-softokn

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) - ppc64, ppc64le, s390x, x86_64

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

1728437 - CVE-2019-11729 nss: Empty or malformed p256-ECDH public keys may trigger a segmentation fault

1774831 - CVE-2019-11745 nss: Out-of-bounds write when passing an output buffer smaller than the block size to NSC_EncryptUpdate

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