VDB
CVE-2021-29966
CVE-2021-29966
PUBLISHED
CVSS 8.800000190734863 HIGH
Mozilla developers reported memory safety bugs present in Firefox 88. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 89.
EPSS 1.01% · 61.2th percentile
Risk Scores
CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
1.01%
61.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | mozjs68 | 68.6.0-1ubuntu1, *, 0 |
| Ubuntu:20.04:LTS | mozjs52 | 52.9.1-1ubuntu3, 52.9.1-1build1, 0 |
| Ubuntu:18.04:LTS | mozjs38 | 0, 38.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu1 |
| Ubuntu:18.04:LTS | firefox | 62.0+build2-0ubuntu0.18.04.5, 66.0.2+build1-0ubuntu0.18.04.1, 66.0.4+build3-0ubuntu0.18.04.1 |
| Ubuntu:18.04:LTS | mozjs52 | 52.9.1-0ubuntu0.18.04.1, 52.8.1-0ubuntu0.18.04.1, 52.3.1-0ubuntu3 |
| Ubuntu:22.04:LTS | mozjs78 | 78.13.0-1, 78.15.0-2, 78.15.0-4ubuntu1 |
| Ubuntu:20.04:LTS | firefox | 84.0.2+build1-0ubuntu0.20.04.1, 85.0+build1-0ubuntu0.20.04.1, 86.0+build3-0ubuntu0.20.04.1 |
Timeline
- Feb 24, 2021 CVE Published
- Jun 25, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 24, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 22, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jun 24, 2022 EPSS Score
- Aug 24, 2022 EPSS Score
- Oct 24, 2022 EPSS Score
- Dec 24, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-29966 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-23/#CVE-2021-29966 third-party-advisory
- https://ubuntu.com/security/notices/USN-4978-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-29966 third-party-advisory