Vulnerabilities > CVE-2023-5174 - Use After Free vulnerability in Mozilla Firefox

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
mozilla
CWE-416
critical
NVD
Published: 2023-09-27
Updated: 2023-09-29

Summary

If Windows failed to duplicate a handle during process creation, the sandbox code may have inadvertently freed a pointer twice, resulting in a use-after-free and a potentially exploitable crash. *This bug only affects Firefox on Windows when run in non-standard configurations (such as using `runas`). Other operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.

Vulnerable Configurations

Part Description Count
Application
Mozilla
1294
OS
Microsoft
1

Common Weakness Enumeration (CWE)

References