Vulnerabilities > CVE-2021-38504 - Use After Free vulnerability in multiple products

047910
CVSS 8.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
mozilla
debian
CWE-416

Summary

When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Vulnerable Configurations

Part Description Count
Application
Mozilla
1142
OS
Debian
3

Common Weakness Enumeration (CWE)