In Artifex Ghostscript 9.23 before 2018-08-24, attackers able to supply crafted PostScript could use uninitialized memory access in the aesdecode operator to crash the interpreter or potentially execute code.
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=8e9ce5016db968b40e4ec255a3005f2786cce45f
http://www.securityfocus.com/bid/105122
https://access.redhat.com/errata/RHSA-2018:3834
https://bugs.ghostscript.com/show_bug.cgi?id=699665
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101
https://lists.debian.org/debian-lts-announce/2018/09/msg00015.html
https://security.gentoo.org/glsa/201811-12
https://support.f5.com/csp/article/K22141757?utm_source=f5support&utm_medium=RSS
https://usn.ubuntu.com/3768-1/
Source: MITRE
Published: 2018-08-28
Updated: 2020-08-24
Type: CWE-908
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH