USN-4092-1: Ghostscript vulnerability

USN-4092-1: Ghostscript vulnerability

ghostscript vulnerability

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

• Ubuntu 19.04
• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary

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

Software Description

• ghostscript – PostScript and PDF interpreter

Details

Netanel Fisher discovered that the font handler 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.

Update instructions

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

Ubuntu 19.04

ghostscript – 9.26~dfsg+0-0ubuntu7.2

libgs9 – 9.26~dfsg+0-0ubuntu7.2

Ubuntu 18.04 LTS

ghostscript – 9.26~dfsg+0-0ubuntu0.18.04.10

libgs9 – 9.26~dfsg+0-0ubuntu0.18.04.10

Ubuntu 16.04 LTS

ghostscript – 9.26~dfsg+0-0ubuntu0.16.04.10

libgs9 – 9.26~dfsg+0-0ubuntu0.16.04.10

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-2019-10216

Source: USN-4092-1: Ghostscript vulnerability