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AUSCERT External Security Bulletin Redistribution
ESB-2020.2889
USN-4469-1: Ghostscript vulnerabilities
25 August 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Ghostscript
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Increased Privileges -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-17538 CVE-2020-16310 CVE-2020-16309
CVE-2020-16308 CVE-2020-16307 CVE-2020-16306
CVE-2020-16305 CVE-2020-16304 CVE-2020-16303
CVE-2020-16302 CVE-2020-16301 CVE-2020-16300
CVE-2020-16299 CVE-2020-16298 CVE-2020-16297
CVE-2020-16296 CVE-2020-16295 CVE-2020-16294
CVE-2020-16293 CVE-2020-16292 CVE-2020-16291
CVE-2020-16290 CVE-2020-16289 CVE-2020-16288
CVE-2020-16287
Reference: ESB-2020.2873
Original Bulletin:
https://usn.ubuntu.com/4469-1/
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USN-4469-1: Ghostscript vulnerabilities
24 August 2020
Several security issues were fixed in Ghostscript.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o ghostscript - PostScript and PDF interpreter
Details
It was discovered that Ghostscript incorrectly handled certain document
files. If a user or automated system were tricked into processing a
specially crafted file, a remote attacker could use this issue to cause
Ghostscript to crash, resulting in a denial of service, or possibly
execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o ghostscript - 9.50~dfsg-5ubuntu4.2
o libgs9 - 9.50~dfsg-5ubuntu4.2
Ubuntu 18.04
o ghostscript - 9.26~dfsg+0-0ubuntu0.18.04.13
o libgs9 - 9.26~dfsg+0-0ubuntu0.18.04.13
Ubuntu 16.04
o ghostscript - 9.26~dfsg+0-0ubuntu0.16.04.13
o libgs9 - 9.26~dfsg+0-0ubuntu0.16.04.13
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-16297
o CVE-2020-16299
o CVE-2020-16310
o CVE-2020-16295
o CVE-2020-16301
o CVE-2020-16302
o CVE-2020-16290
o CVE-2020-16305
o CVE-2020-16296
o CVE-2020-16300
o CVE-2020-16294
o CVE-2020-16292
o CVE-2020-16309
o CVE-2020-16288
o CVE-2020-16307
o CVE-2020-16303
o CVE-2020-16298
o CVE-2020-16293
o CVE-2020-16304
o CVE-2020-16291
o CVE-2020-17538
o CVE-2020-16306
o CVE-2020-16287
o CVE-2020-16308
o CVE-2020-16289
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