Ubuntu: 3866-1 Critical: ghostscript Denial Of Service Risk

ubuntu

January 23, 2019

Ghostscript could be made to crash, access files, or run programs if it opened a specially crafted file.

Summary

Ghostscript could be made to crash, access files, or run programs if it

opened a specially crafted file.

Software Description:

- ghostscript: PostScript and PDF interpreter

Details:

Tavis Ormandy discovered that Ghostscript incorrectly handled certain

PostScript files. 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, execute arbitrary code, or cause a

denial of service.

Topics Covered

security advisory denial of service ghostscript Ubuntu file access

Update Instructions

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

Ubuntu 18.10:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.10.4
  libgs9                          9.26~dfsg+0-0ubuntu0.18.10.4

Ubuntu 18.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.4
  libgs9                          9.26~dfsg+0-0ubuntu0.18.04.4

Ubuntu 16.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.16.04.4
  libgs9                          9.26~dfsg+0-0ubuntu0.16.04.4

Ubuntu 14.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.14.04.4
  libgs9                          9.26~dfsg+0-0ubuntu0.14.04.4

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