Security Bulletin: Vulnerability in nss, nss-softokn, nss-util vulnerability (CVE-2019-11729 and CVE-2019-11745)

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 SecurityServices (NSS) libraries. vulnerable by CVE-2019-11729 and CVE-2019-11745

Vulnerability Details

CVEID:CVE-2019-11729
**DESCRIPTION:**Mozilla Firefox is vulnerable to a denial of service, caused by the improperly validation of empty or malformed p256-ECDH public keys before being copied into memory and used. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to cause the browser to crash.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/163507 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID:CVE-2019-11745
**DESCRIPTION:**Mozilla Network Security Services (NSS), as used in Mozilla Firefox could allow a remote attacker to execute arbitrary code on the system, caused by an out-of-bounds write when encrypting with a block cipher. By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to corrupt the heap and execute arbitrary code on the vulnerable system or cause a denial of service.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/172458 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Affected Products and Versions

Remediation/Fixes

Remediation/Fixes

The following fixes are available on IBM Fix Central at: <http://www-933.ibm.com/support/fixcentral/&gt;

Product

|

VRMF

|

APAR

|

Remediation/Fix

—|—|—|—

Power HMC

|

V9.1.940.2 ppc

|

MB04231

|

MH01843

Power HMC

|

V9.1.940.2 x86

|

MB04230

|

MH01842

Workarounds and Mitigations

None