ZDI-21-971: (Pwn2Own) Zoom Heap based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Zoom Clients. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of encrypted messages. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current user.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-21-971?
The severity of ZDI-21-971 is critical, as it allows remote code execution without authentication.
How do I fix ZDI-21-971?
To fix ZDI-21-971, update your Zoom Client to the latest version available from the official Zoom website.
Who is affected by ZDI-21-971?
ZDI-21-971 affects all installations of Zoom Clients that have not been updated to address this vulnerability.
What type of vulnerability is ZDI-21-971?
ZDI-21-971 is a remote code execution vulnerability found in the processing of encrypted messages within Zoom Clients.
Can ZDI-21-971 be exploited without authentication?
Yes, ZDI-21-971 can be exploited by remote attackers without requiring any authentication.