CVE-2020-15900

 

Published at: - 28-07-2020 06:15

Last modified: - 27-04-2022 06:28

Total changes: - 3

Description

A memory corruption issue was found in Artifex Ghostscript 9.50 and 9.52. Use of a non-standard PostScript operator can allow overriding of file access controls. The 'rsearch' calculation for the 'post' size resulted in a size that was too large, and could underflow to max uint32_t. This was fixed in commit 5d499272b95a6b890a1397e11d20937de000d31b.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5d499272b95a6b890a1397e11d20937de000d31b
• https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c
• http://git.ghostscript.com/?p=ghostpdl.git;a=log
• https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b
• https://artifex.com/security-advisories/CVE-2020-15900
• openSUSE-SU-2020:1142-Mailing List, Third Party Advisory
• openSUSE-SU-2020:1146-Mailing List, Third Party Advisory
• USN-4445-1-Third Party Advisory
• GLSA-202008-20-Third Party Advisory

 

Keywords

NVD

 

CVE-2020-15900

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures