Security Bulletin: Vulnerability in Mozilla NSS affects PowerKVM (CVE-2015-2730)

Security Bulletin

Summary

PowerKVM is affected by a vulnerability in Mozilla NSS (CVE-2015-2730). This vulnerability is now fixed. Note that this primarily affects Mozilla Firefox, which does not ship with PowerKVM.

Vulnerability Details

CVEID: CVE-2015-2730
DESCRIPTION: Mozilla Firefox could allow a remote attacker to bypass security restrictions, caused by the failure to properly handle certain exceptional cases by the Elliptical Curve Cryptography (ECC) multiplication for Elliptic Curve Digital Signature Algorithm (ECDSA) signature validation in Network Security Services (NSS). By persuading a victim to visit a specially-crafted Web site, a remote attacker could exploit this vulnerability to forge signatures.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/#/vulnerabilities/104386 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N)

Note that this primarily affects Mozilla Firefox, which does not ship with PowerKVM.

Affected Products and Versions

PowerKVM 2.1

Remediation/Fixes

Fix is made available via Fix Central (https://ibm.biz/BdEnT8) in 2.1.1 Build 65.1 and all later 2.1.1 SP3 service builds and 2.1.1 fix packs. For systems currently running fix levels of PowerKVM prior to 2.1.1, please see http://download4.boulder.ibm.com/sar/CMA/OSA/05e4c/0/README for prerequisite fixes and instructions. Customers can also update from 2.1.1 (GA and later levels) by using "yum update".

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

14 August 2015 - Initial Version
19 October 2015 - Updated to correct CVE and description

*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.

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Tips

Security Bulletin: Vulnerability in Mozilla NSS affects PowerKVM (CVE-2015-2730)