1. Ubuntu Security Notices
  2. USN-4111-1

USN-4111-1: Ghostscript vulnerabilities

Publication date

29 August 2019

Overview

Ghostscript could be made to access arbitrary files if it opened a specially crafted file.

Releases

Packages

Details

Hiroki Matsukuma discovered that the PDF interpreter in Ghostscript
did not properly restrict privileged calls when ‘-dSAFER’
restrictions were in effect. If a user or automated system were
tricked into processing a specially crafted file, a remote attacker
could possibly use this issue to access arbitrary files.
(CVE-2019-14811, CVE-2019-14812, CVE-2019-14813, CVE-2019-14817)

Hiroki Matsukuma discovered that the PDF interpreter in Ghostscript
did not properly restrict privileged calls when ‘-dSAFER’
restrictions were in effect. If a user or automated system were
tricked into processing a specially crafted file, a remote attacker
could possibly use this issue to access arbitrary files.
(CVE-2019-14811, CVE-2019-14812, CVE-2019-14813, CVE-2019-14817)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
19.04 disco ghostscript –  9.26~dfsg+0-0ubuntu7.3
libgs9 –  9.26~dfsg+0-0ubuntu7.3
18.04 bionic ghostscript –  9.26~dfsg+0-0ubuntu0.18.04.11
libgs9 –  9.26~dfsg+0-0ubuntu0.18.04.11
16.04 xenial ghostscript –  9.26~dfsg+0-0ubuntu0.16.04.11
libgs9 –  9.26~dfsg+0-0ubuntu0.16.04.11

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References

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