USN-3148-1: Ghostscript vulnerabilities

2 December 2016

ghostscript vulnerabilities

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

  • Ubuntu 16.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS

Summary

Ghostscript could be made to crash, run programs, or disclose sensitive information if it processed a specially crafted file.

Software Description

  • ghostscript - PostScript and PDF interpreter

Details

Tavis Ormandy discovered multiple vulnerabilities in the way that Ghostscript processes certain Postscript files. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service or possibly execute arbitrary code. (CVE-2016-7976, CVE-2016-7978, CVE-2016-7979, CVE-2016-8602)

Multiple vulnerabilities were discovered in Ghostscript related to information disclosure. If a user or automated system were tricked into opening a specially crafted file, an attacker could expose sensitive data. (CVE-2013-5653, CVE-2016-7977)

Update instructions

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

Ubuntu 16.10
ghostscript - 9.19~dfsg+1-0ubuntu6.2
ghostscript-x - 9.19~dfsg+1-0ubuntu6.2
libgs9 - 9.19~dfsg+1-0ubuntu6.2
libgs9-common - 9.19~dfsg+1-0ubuntu6.2
Ubuntu 16.04 LTS
ghostscript - 9.18~dfsg~0-0ubuntu2.2
ghostscript-x - 9.18~dfsg~0-0ubuntu2.2
libgs9 - 9.18~dfsg~0-0ubuntu2.2
libgs9-common - 9.18~dfsg~0-0ubuntu2.2
Ubuntu 14.04 LTS
ghostscript - 9.10~dfsg-0ubuntu10.5
ghostscript-x - 9.10~dfsg-0ubuntu10.5
libgs9 - 9.10~dfsg-0ubuntu10.5
libgs9-common - 9.10~dfsg-0ubuntu10.5
Ubuntu 12.04 LTS
ghostscript - 9.05~dfsg-0ubuntu4.4
ghostscript-x - 9.05~dfsg-0ubuntu4.4
libgs9 - 9.05~dfsg-0ubuntu4.4
libgs9-common - 9.05~dfsg-0ubuntu4.4

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