Vulnerabilities > CVE-2023-5171 - Use After Free vulnerability in multiple products

047910
CVSS 6.5 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
HIGH

Summary

During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

Vulnerable Configurations

Part Description Count
Application
Mozilla
1294
OS
Debian
3
OS
Fedoraproject
1

Common Weakness Enumeration (CWE)