Security Bulletin: Vulnerabiliies in ghostscript affect PowerKVM

Summary

PowerKVM is affected by vulnerabilities in ghostscript. IBM has now addressed these vulnerabilities.

Vulnerability Details

CVEID: CVE-2019-3838 DESCRIPTION: Ghostscript could allow a remote attacker to bypass security restrictions, caused by improper usage of forceput operator. By persuading a victim to open a specially-crafted PostScript file, a remote attacker could exploit this vulnerability to gain access to the file system outside of the constraints imposed by -dSAFER.
CVSS Base Score: 5.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/158503&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)

CVEID: CVE-2019-3835 DESCRIPTION: Ghostscript could allow a remote attacker to bypass security restrictions, caused by improper usage of superexec operator. By persuading a victim to open a specially-crafted PostScript file, a remote attacker could exploit this vulnerability to gain access to the file system outside of the constraints imposed by -dSAFER.
CVSS Base Score: 5.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/158502&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N)

Affected Products and Versions

PowerKVM 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 18.

Workarounds and Mitigations

none