Published: 23/07/2019 Updated: 21/07/2021

CVSS v2 Base Score: 6.8 | Impact Score: 6.4 | Exploitability Score: 8.6

CVSS v3 Base Score: 8.1 | Impact Score: 5.9 | Exploitability Score: 2.2

VMScore: 605

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

A use-after-free vulnerability can occur in AssertWorkerThread due to a race condition with shared workers. This results in a potentially exploitable crash. This vulnerability affects Firefox < 67.

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mozilla firefox

USN-3991-2 caused a regression in Firefox ...

Firefox could be made to crash or run programs as your login if it opened a malicious website ...

USN-3991-1 caused a regression in Firefox ...

Mozilla Foundation Security Advisory 2019-13 Security vulnerabilities fixed in Firefox 67 Announced May 21, 2019 Impact critical Products Firefox Fixed in Firefox 67 ...

Severity Unknown Remote Unknown Type Unknown Description AVG-966 firefox 6605-1 670-1 Low Fixed ...

CWE-362 CWE-416 https://www.mozilla.org/security/advisories/mfsa2019-13/https://bugzilla.mozilla.org/show_bug.cgi?id=1539125 https://nvd.nist.gov https://usn.ubuntu.com/3991-3/

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CVE-2019-9821

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