USN-3148-1: Ghostscript vulnerabilities

Ubuntu Security Notice USN-3148-1

1st 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 version:

Ubuntu 16.10:
ghostscript-x

9.19~dfsg+1-0ubuntu6.2
ghostscript

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-x

9.18~dfsg~0-0ubuntu2.2
ghostscript

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-x

9.10~dfsg-0ubuntu10.5
ghostscript

9.10~dfsg-0ubuntu10.5
libgs9

9.10~dfsg-0ubuntu10.5
libgs9-common

9.10~dfsg-0ubuntu10.5
Ubuntu 12.04 LTS:
ghostscript-x

9.05~dfsg-0ubuntu4.4
ghostscript

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

CVE-2013-5653,

CVE-2016-7976,

CVE-2016-7977,

CVE-2016-7978,

CVE-2016-7979,

CVE-2016-8602

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