CVE Vulnerability

CVE-2020-15900

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.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=5d499272b95a6b890a1397e11d20937de000d31b Patch Vendor Advisory
https://github.com/ArtifexSoftware/ghostpdl/commits/master/psi/zstring.c Patch Third Party Advisory
http://git.ghostscript.com/?p=ghostpdl.git;a=log Mailing List Vendor Advisory
https://github.com/ArtifexSoftware/ghostpdl/commit/5d499272b95a6b890a1397e11d20937de000d31b Patch Third Party Advisory
https://artifex.com/security-advisories/CVE-2020-15900 Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00004.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00006.html Mailing List Third Party Advisory
https://usn.ubuntu.com/4445-1/ Third Party Advisory
https://security.gentoo.org/glsa/202008-20 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:artifex:ghostscript:9.52:*:*:*:*:*:*:*
cpe:2.3:a:artifex:ghostscript:9.50:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
Information

Published : 2020-07-28 04:15

Updated : 2022-04-27 04:28

NVD link : CVE-2020-15900

Mitre link : CVE-2020-15900

Products Affected
No products.
CWE
CWE-191

Integer Underflow (Wrap or Wraparound)

CWE-787