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AUSCERT External Security Bulletin Redistribution
ESB-2019.3080
USN-4092-1: Ghostscript vulnerability
13 August 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: ghostscript
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-10216
Reference: ESB-2019.3072
ESB-2019.3071
Original Bulletin:
https://usn.ubuntu.com/4092-1/
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USN-4092-1: Ghostscript vulnerability
12 August 2019
ghostscript vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.04
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
Ghostscript could be made to access files if it opened a specially crafted
file.
Software Description
o 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
o CVE-2019-10216
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