CVE-2020-3770

Adobe Photoshop PCX File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Adobe Photoshop CC 2019 versions 20.0.8 and earlier, and Photoshop 2020 versions 21.1 and earlier have a buffer errors vulnerability. Successful exploitation could lead to arbitrary code execution.

Adobe Photoshop CC 2019 versiones 20.0.8 y anteriores, y Photoshop 2020 versiones 21.1 y anteriores, presentan una vulnerabilidad de errores del búfer. Una explotación con éxito podría conllevar a una ejecución de código arbitraria.

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Adobe Photoshop. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the processing of PCX files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

*Credits: Yu Zhou(@yuzhou6666)

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-17 CVE Reserved
2020-03-19 CVE Published
2024-06-04 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://helpx.adobe.com/security/products/photoshop/apsb20-14.html	2021-09-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Adobe Search vendor "Adobe"	Photoshop 2020 Search vendor "Adobe" for product "Photoshop 2020"	>= 21.0 <= 21.1 Search vendor "Adobe" for product "Photoshop 2020" and version " >= 21.0 <= 21.1"	-	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Photoshop 2020 Search vendor "Adobe" for product "Photoshop 2020"	>= 21.0 <= 21.1 Search vendor "Adobe" for product "Photoshop 2020" and version " >= 21.0 <= 21.1"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Adobe Search vendor "Adobe"	Photoshop Cc Search vendor "Adobe" for product "Photoshop Cc"	>= 20.0 <= 20.0.8 Search vendor "Adobe" for product "Photoshop Cc" and version " >= 20.0 <= 20.0.8"	-	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Photoshop Cc Search vendor "Adobe" for product "Photoshop Cc"	>= 20.0 <= 20.0.8 Search vendor "Adobe" for product "Photoshop Cc" and version " >= 20.0 <= 20.0.8"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe