CVE-2020-3791

Adobe Photoshop Type 1 Font Parsing Charstring Out-of-Bounds Read Information Disclosure Vulnerability

Severity Score

4.3

*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 an out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Adobe Photoshop CC 2019 versiones 20.0.8 y anteriores, y Photoshop 2020 versiones 21.1 y anteriores, presentan una vulnerabilidad de lectura fuera de límites. Una explotación con éxito podría conllevar a una divulgación de información.

This vulnerability allows remote attackers to disclose sensitive information 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 handling of Type 1 fonts. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

*Credits: Steven Seeley (mr_me) of Source Incite

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* 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-125: Out-of-bounds Read

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