USN-3866-3: Ghostscript regression
ghostscript regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
USN-3866-2 introduced a regression in Ghostscript.
Software Description
- ghostscript – PostScript and PDF interpreter
Details
USN-3866-2 fixed a regression in Ghostscript. The Ghostscript update
introduced a new regression that resulted in certain pages being printed
with a blue background. This update fixes the problem.
Original advisory 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.
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.10
- ghostscript – 9.26~dfsg+0-0ubuntu0.18.10.7
- libgs9 – 9.26~dfsg+0-0ubuntu0.18.10.7
- Ubuntu 18.04 LTS
- ghostscript – 9.26~dfsg+0-0ubuntu0.18.04.7
- libgs9 – 9.26~dfsg+0-0ubuntu0.18.04.7
- Ubuntu 16.04 LTS
- ghostscript – 9.26~dfsg+0-0ubuntu0.16.04.7
- libgs9 – 9.26~dfsg+0-0ubuntu0.16.04.7
- Ubuntu 14.04 LTS
- ghostscript – 9.26~dfsg+0-0ubuntu0.14.04.7
- libgs9 – 9.26~dfsg+0-0ubuntu0.14.04.7
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
Source: USN-3866-3: Ghostscript regression
