CVE-2022-2085

 

Published at: - 16-06-2022 08:15

Last modified: - 22-11-2022 07:15

Total changes: - 5

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

 

Verification logic

 

Reference

• https://bugs.ghostscript.com/show_bug.cgi?id=704945
• http://git.ghostscript.com/?p=ghostpdl.git;h=ae1061d948d88667bdf51d47d918c4684d0f67df
• https://bugzilla.redhat.com/show_bug.cgi?id=2095261
• FEDORA-2022-d287230630-
• GLSA-202211-11-

 

Keywords

NVD

 

CVE-2022-2085

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures