Security Bulletin
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
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
| Affected Product(s) | Version(s) |
| HMC V9.1.910.0 | V9.1.910.0 |
Remediation/Fixes
Remediation/Fixes
The following fixes are available on IBM Fix Central at: http://www-933.ibm.com/support/fixcentral/
|
Product
|
VRMF
|
APAR
|
Remediation/Fix
|
|
Power HMC
|
V9.1.940.2 ppc
|
MB04231
|
|
|
Power HMC
|
V9.1.940.2 x86
|
MB04230
|
Workarounds and Mitigations
Get Notified about Future Security Bulletins
References
Change History
28 April 2020: Initial Publication
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
22 September 2021
UID
ibm16202441