Ubuntu 21.10-18.04 LTS: USN-5224-1 Critical: Ghostscript Denial of Service

ubuntu

January 12, 2022

Several security issues were fixed in Ghostscript.

Summary

Several security issues were fixed in Ghostscript.

Software Description:

- ghostscript: PostScript and PDF interpreter

Details:

It was 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

cause Ghostscript to crash, resulting in a denial of service, or possibly

execute arbitrary code.

Topics Covered

security advisory denial of service remote code execution ghostscript ubuntu

Update Instructions

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

Ubuntu 21.10:
  ghostscript                     9.54.0~dfsg1-0ubuntu2.1
  libgs9                          9.54.0~dfsg1-0ubuntu2.1

Ubuntu 21.04:
  ghostscript                     9.53.3~dfsg-7ubuntu0.2
  libgs9                          9.53.3~dfsg-7ubuntu0.2

Ubuntu 20.04 LTS:
  ghostscript                     9.50~dfsg-5ubuntu4.5
  libgs9                          9.50~dfsg-5ubuntu4.5

Ubuntu 18.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.15
  libgs9                          9.26~dfsg+0-0ubuntu0.18.04.15

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