A race condition is present in the crash generation server used to generate data for the crash reporter. This issue can lead to a use-after-free in the main process, resulting in a potentially exploitable crash and a sandbox escape. *Note: this vulnerability only affects Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
https://www.mozilla.org/security/advisories/mfsa2019-15/
https://www.mozilla.org/security/advisories/mfsa2019-14/
Source: MITRE
Published: 2019-07-23
Updated: 2021-07-21
Type: CWE-362
Base Score: 5.1
Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 4.9
Severity: MEDIUM
Base Score: 8.3
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Impact Score: 6
Exploitability Score: 1.6
Severity: HIGH