Security Bulletin: Vulnerability in Mozilla gdk-pixbuf2 affects PowerKVM (CVE-2015-4491)

Security Bulletin

Summary

PowerKVM is affected by a vulnerability in Mozilla gdb-pixbuf2 (CVE-2015-4491). A fix for this vulnerability is available, as described below. Note that this primarily affects Mozilla Firefox, which does not ship with PowerKVM.

Vulnerability Details

CVEID: CVE-2015-4491
DESCRIPTION: Mozilla Firefox is vulnerable to a heap-based buffer overflow, caused by improper bounds checking bygdk-pixbuf affecting Linux systems using Gnome. By persuading a victim to visit a specially-crafted Web site, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 8.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/105544 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

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

Affected Products and Versions

PowerKVM v2.1

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

19 Oct 2015 - Initial Version

*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 gdk-pixbuf2 affects PowerKVM (CVE-2015-4491)