VDB
CVE-2019-9821
CVE-2019-9821
PUBLISHED
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.
EPSS 0.42% · 62.6th percentile
Risk Scores
EPSS Score
0.42%
62.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | mozjs52 | 0, 52.3.1-0ubuntu3, 52.3.1-7fakesync1 |
| Ubuntu:16.04:LTS | firefox | 50.0.2+build1-0ubuntu0.16.04.1, 58.0.1+build1-0ubuntu0.16.04.1, 58.0.2+build1-0ubuntu0.16.04.1 |
| Ubuntu:20.04:LTS | mozjs52 | 0, 52.9.1-1build1, 52.9.1-1ubuntu3 |
| Ubuntu:18.04:LTS | mozjs38 | 38.8.0~repack1-0ubuntu3, 38.8.0~repack1-0ubuntu4, 0 |
| Ubuntu:18.04:LTS | firefox | 66.0.3+build1-0ubuntu0.18.04.1, 66.0.4+build3-0ubuntu0.18.04.1, 66.0.5+build1-0ubuntu0.18.04.1 |
Timeline
- May 21, 2019 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-9821 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2019-13/#CVE-2019-9821 third-party-advisory
- https://ubuntu.com/security/notices/USN-3991-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-9821 third-party-advisory