ghostscript vulnerabilities

28 August 2017

ghostscript vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 17.04
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary

Several security issues were fixed in Ghostscript.

Software Description

• ghostscript - PostScript and PDF interpreter

Details

Kamil Frankowicz discovered that Ghostscript mishandles references. A remote attacker could use this to cause a denial of service. (CVE-2017-11714)

Kim Gwan Yeong discovered that Ghostscript could allow a heap-based buffer over-read and application crash. A remote attacker could use a crafted document to cause a denial of service. (CVE-2017-9611, CVE-2017-9726, CVE-2017-9727, CVE-2017-9739)

Kim Gwan Yeong discovered an use-after-free vulnerability in Ghostscript. A remote attacker could use a crafted file to cause a denial of service. (CVE-2017-9612)

Kim Gwan Yeong discovered a lack of integer overflow check in Ghostscript. A remote attacker could use crafted PostScript document to cause a denial of service. (CVE-2017-9835)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.04

ghostscript - 9.19~dfsg+1-0ubuntu7.6

ghostscript-x - 9.19~dfsg+1-0ubuntu7.6

libgs9 - 9.19~dfsg+1-0ubuntu7.6

libgs9-common - 9.19~dfsg+1-0ubuntu7.6

Ubuntu 16.04 LTS

ghostscript - 9.18~dfsg~0-0ubuntu2.7

ghostscript-x - 9.18~dfsg~0-0ubuntu2.7

libgs9 - 9.18~dfsg~0-0ubuntu2.7

libgs9-common - 9.18~dfsg~0-0ubuntu2.7

Ubuntu 14.04 LTS

ghostscript - 9.10~dfsg-0ubuntu10.10

ghostscript-x - 9.10~dfsg-0ubuntu10.10

libgs9 - 9.10~dfsg-0ubuntu10.10

libgs9-common - 9.10~dfsg-0ubuntu10.10

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

• CVE-2017-11714
• CVE-2017-9611
• CVE-2017-9612
• CVE-2017-9726
• CVE-2017-9727
• CVE-2017-9739
• CVE-2017-9835