CVE-2023-5174 (firefox, firefox_esr, thunderbird)

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.

bug code crash cve firefox free may non operating systems process process creation run sandbox standard systems thunderbird use-after-free vulnerability windows