USN-4092-1: Ghostscript vulnerability

Releases

• Ubuntu 19.04
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• 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

• ghostscript - 9.26~dfsg+0-0ubuntu0.18.04.10
• libgs9 - 9.26~dfsg+0-0ubuntu0.18.04.10

Ubuntu 16.04

• ghostscript - 9.26~dfsg+0-0ubuntu0.16.04.10
• libgs9 - 9.26~dfsg+0-0ubuntu0.16.04.10

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

References

• CVE-2019-10216