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Security Bulletin: Vulnerabiliies in ghostscript affect PowerKVM

Created by Scott Garfinkle on
Published URL:
https://www.ibm.com/support/pages/node/878987
878987

Security Bulletin


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 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 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

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

28 March 2019 - 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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Document Information

Modified date:
17 May 2019

UID

ibm10878987

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