Security Bulletin: A vulnerability in Ghostscript affects PowerKVM

Summary

PowerKVM is affected by a vulnerability in Ghostscript. IBM has now addressed this vulnerability.

Vulnerability Details

CVEID: CVE-2017-7207**
DESCRIPTION:** Artifex Software Ghostscript is vulnerable to a denial of service, caused by a NULL pointer dereference in the mem_get_bits_rectangle function. By using a specially-crafted PostScript document, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/123535 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

PowerKVM 2.1 and 3.1

Remediation/Fixes

Customers can update PowerKVM systems by using “yum update”.

Fix images are made available via Fix Central. For version 3.1, see https://ibm.biz/BdHggw. This issue is addressed starting with v3.1.0.2 update 10.

For version 2.1, see https://ibm.biz/BdEnT8. This issue is addressed starting with PowerKVM 2.1.1.3-65 update 19. Customers running v2.1 are, in any case, encouraged to upgrade to v3.1.

For v2.1 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&gt; for prerequisite fixes and instructions.

Workarounds and Mitigations

none