Description
A NULL pointer dereference vulnerability was found in Ghostscript, which occurs when it tries to render a large number of bits in memory. When allocating a buffer device, it relies on an init_device_procs defined for the device that uses it as a prototype that depends upon the number of bits per pixel. For bpp > 64, mem_x_device is used and does not have an init_device_procs defined. This flaw allows an attacker to parse a large number of bits (more than 64 bits per pixel), which triggers a NULL pointer dereference flaw, causing an application to crash.
References
https://bugs.ghostscript.com/show_bug.cgi?id=704945
https://bugzilla.redhat.com/show_bug.cgi?id=2095261
https://security.gentoo.org/glsa/202211-11
CVSS impact metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5 · Medium
CVSS V3.1
CVSS V3.0
CVSS V2.0
Information
Source identifier
Vulnerability status
Modified
Published
2022-06-16T18:15:10.190
3 years agoLast modified
2023-09-17T07:15:07.477
1 year ago