Rewterz Threat Advisory – Multiple Adobe Acrobat and Adobe Reader Vulnerabilities

Severity

High

Analysis Summary

CVE-2021-40728 

Adobe Acrobat and Adobe Reader could allow a remote attacker to execute arbitrary code on the system, caused by a use-after-free error. By persuading a victim to open a specially crafted document, a remote attacker could exploit this vulnerability to execute arbitrary code on the system with the privileges of the victim or cause the application to crash.

CVE-2021-40729 

Adobe Acrobat and Adobe Reader could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read. By persuading a victim to open a specially-crafted document, a remote attacker could exploit this vulnerability to obtain sensitive information.

CVE-2021-40730 

Adobe Acrobat and Adobe Reader could allow a remote attacker to obtain sensitive information, caused by a use-after-free. By persuading a victim to open a specially-crafted document, a remote attacker could exploit this vulnerability to obtain sensitive information.

CVE-2021-40731 

Adobe Acrobat and Adobe Reader could allow a remote attacker to execute arbitrary code on the system, caused by an out-of-bounds write error. By persuading a victim to open a specially-crafted document, a remote attacker could exploit this vulnerability to execute arbitrary code on the system with the privileges of the victim or cause the application to crash.

Impact

• Code Execution
• Information Theft

Affected Vendors

• Adobe

Affected Products

• Adobe Acrobat 2017 17.011.30202
• Adobe Acrobat Reader 2017 17.011.30202
• Adobe Acrobat 2020 20.004.30015
• Adobe Acrobat Reader 2020 20.004.30015
• Adobe Acrobat DC 21.007.20096
• Adobe Acrobat DC 21.007.20095
• Adobe Acrobat Reader DC 21.007.20096
• Adobe Acrobat Reader DC 21.007.20095

Remediation

Refer to Adobe Advisory for patch, upgrade or suggested workaround information.