Adobe Security Bulletin

Adobe has released security updates for Adobe Acrobat and Reader for Windows and macOS. These updates address  multiple critical, important and moderate vulnerabilities. Successful exploitation could lead to arbitrary code execution, memory leak, application denial of service,  security feature bypass and privilege escalation. 

Affected Versions

For questions regarding Acrobat DC, please visit the Acrobat DC FAQ page. 

For questions regarding Acrobat Reader DC, please visit the Acrobat Reader DC FAQ page.

Solution

Adobe recommends users update their software installations to the latest versions by following the instructions below.    

The latest product versions are available to end users via one of the following methods:    

• Users can update their product installations manually by choosing Help > Check for Updates.     

• The products will update automatically, without requiring user intervention, when updates are detected.      

• The full Acrobat Reader installer can be downloaded from the Acrobat Reader Download Center.     

For IT administrators (managed environments):     

• Refer to the specific release note version for links to installers.     

• Install updates via your preferred methodology, such as AIP-GPO, bootstrapper, SCUP/SCCM (Windows), or on macOS, Apple Remote Desktop and SSH.     

Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the newest version:    

Vulnerability Details

Acknowledgements

Adobe would like to thank the following for reporting these issues and for working with Adobe to help protect our customers:   

• Ashfaq Ansari and Krishnakant Patil - HackSys Inc working with Trend Micro Zero Day Initiative (CVE-2021-44701)
• j00sean (j00sean) (CVE-2021-44702, CVE-2021-44739)
• Kai Lu of Zscaler's ThreatLabz (CVE-2021-44703, CVE-2021-44708, CVE-2021-44709, CVE-2021-44740, CVE-2021-44741)
• PangU via TianfuCup (CVE-2021-44704)
• StakLeader via TianfuCup (CVE-2021-44705)
• bee13oy of Kunlun Lab via TianfuCup (CVE-2021-44706)
• Vulnerability Research Institute Juvenile Via TianfuCup (CVE-2021-44707)
• Jaewon Min and Aleksandar Nikolic of Cisco Talos (CVE-2021-44710, CVE-2021-44711)
• Sanjeev Das (sd001) (CVE-2021-44712)
  
• Rocco Calvi (TecR0c) and Steven Seeley of Qihoo 360 (CVE-2021-44713, CVE-2021-44715)
• chamal (chamal) (CVE-2021-44714)
• fr0zenrain of Baidu Security (fr0zenrain) (CVE-2021-44742)
  
• Anonymous working with Trend Micro Zero Day Initiative (CVE-2021-45060, CVE-2021-45061, CVE-2021-45062, CVE-2021-45063; CVE-2021-45068, CVE-2021-45064)
• Ashfaq Ansari (ashfaqansari) (CVE-2021-45067)
  
  

Revisions:

January 12, 2022: Updated acknowledgement for CVE-2021-44706

January 13, 2022: Updated acknowledgement for CVE-2021-45064, Updated CVE details for CVE-2021-44702 and CVE-2021-44739

January 17, 2022: Updated acknowledgement for CVE-2021-44706

For more information, visit https://helpx.adobe.com/security.html, or email PSIRT@adobe.com.