CVE-2021-39859

Use After Free Adobe Acrobat Pro DC [HB-21-0339]

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Use After Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Las versiones 2021.005.20060 (y anteriores), 2020.004.30006 (y anteriores) y 2017.011.30199 (y anteriores) de Acrobat Reader DC están afectadas por una vulnerabilidad de use-after-free que podría provocar la divulgación de memoria sensible. Un atacante podría aprovechar esta vulnerabilidad para omitir mitigaciones como ASLR. La explotación de este problema requiere la interacción del usuario, en el sentido de que una víctima debe abrir un archivo malicioso.

*Credits: N/A

CVSS Scores

Adobev3.1 5.5

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-23 CVE Reserved
2023-09-06 CVE Published
2024-05-18 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://helpx.adobe.com/security/products/acrobat/apsb21-55.html	2023-09-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Adobe Search vendor "Adobe"	Acrobat Dc Search vendor "Adobe" for product "Acrobat Dc"	>= 15.007.20033 <= 21.005.20060 Search vendor "Adobe" for product "Acrobat Dc" and version " >= 15.007.20033 <= 21.005.20060"	continuous	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Reader Dc Search vendor "Adobe" for product "Acrobat Reader Dc"	>= 15.007.20033 <= 21.005.20060 Search vendor "Adobe" for product "Acrobat Reader Dc" and version " >= 15.007.20033 <= 21.005.20060"	continuous	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Dc Search vendor "Adobe" for product "Acrobat Dc"	>= 15.007.20033 <= 21.005.20058 Search vendor "Adobe" for product "Acrobat Dc" and version " >= 15.007.20033 <= 21.005.20058"	continuous	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Reader Dc Search vendor "Adobe" for product "Acrobat Reader Dc"	>= 15.007.20033 <= 21.005.20058 Search vendor "Adobe" for product "Acrobat Reader Dc" and version " >= 15.007.20033 <= 21.005.20058"	continuous	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Search vendor "Adobe" for product "Acrobat"	>= 17.011.30180 < 17.011.30202 Search vendor "Adobe" for product "Acrobat" and version " >= 17.011.30180 < 17.011.30202"	classic	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Search vendor "Adobe" for product "Acrobat"	>= 17.011.30180 < 17.011.30202 Search vendor "Adobe" for product "Acrobat" and version " >= 17.011.30180 < 17.011.30202"	classic	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Search vendor "Adobe" for product "Acrobat"	>= 20.001.30005 < 20.004.30015 Search vendor "Adobe" for product "Acrobat" and version " >= 20.001.30005 < 20.004.30015"	classic	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Search vendor "Adobe" for product "Acrobat"	>= 20.001.30005 < 20.004.30015 Search vendor "Adobe" for product "Acrobat" and version " >= 20.001.30005 < 20.004.30015"	classic	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Reader Search vendor "Adobe" for product "Acrobat Reader"	>= 17.011.30180 < 17.011.30202 Search vendor "Adobe" for product "Acrobat Reader" and version " >= 17.011.30180 < 17.011.30202"	classic	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Reader Search vendor "Adobe" for product "Acrobat Reader"	>= 17.011.30180 < 17.011.30202 Search vendor "Adobe" for product "Acrobat Reader" and version " >= 17.011.30180 < 17.011.30202"	classic	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Reader Search vendor "Adobe" for product "Acrobat Reader"	>= 20.001.30005 < 20.004.30015 Search vendor "Adobe" for product "Acrobat Reader" and version " >= 20.001.30005 < 20.004.30015"	classic	Affected	in	Apple Search vendor "Apple"	Macos Search vendor "Apple" for product "Macos"	-	-	Safe
Adobe Search vendor "Adobe"	Acrobat Reader Search vendor "Adobe" for product "Acrobat Reader"	>= 20.001.30005 < 20.004.30015 Search vendor "Adobe" for product "Acrobat Reader" and version " >= 20.001.30005 < 20.004.30015"	classic	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe