VULNERABILITY INTELLIGENCE
CVE-2019-17021
CVSS score5.3 MEDIUM
EPSS probability1.87%
CISA KEVNot currently listed
Published2020-01-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Description
During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
Weakness classification
- nvd@nist.gov: CWE-362
Primary references
- security@mozilla.org — Mailing List, Third Party Advisory
- security@mozilla.org — Mailing List, Third Party Advisory
- security@mozilla.org — Exploit, Third Party Advisory, VDB Entry
- security@mozilla.org — Exploit, Issue Tracking, Permissions Required
- security@mozilla.org — Mailing List, Third Party Advisory
- security@mozilla.org — Vendor Advisory
- security@mozilla.org — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Permissions Required
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory