VDB
CVE-2021-29977
CVE-2021-29977
PUBLISHED
CVSS 8.800000190734863 HIGH
Mozilla developers reported memory safety bugs present in Firefox 89. 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 < 90.
EPSS 1.01% · 62.7th 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%
62.7th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | mozjs52 | 0, 52.3.1-0ubuntu3, 52.3.1-7fakesync1 |
| Ubuntu:22.04:LTS | mozjs78 | 78.15.0-2, 78.13.0-1, 0 |
| Ubuntu:20.04:LTS | mozjs68 | 0, 68.5.0-1~fakesync, 68.6.0-1 |
| Ubuntu:20.04:LTS | mozjs52 | 0, 52.9.1-1ubuntu3, 52.9.1-1build1 |
| Ubuntu:20.04:LTS | firefox | *, 0, 69.0.3+build1-0ubuntu1 |
| Ubuntu:18.04:LTS | firefox | 75.0+build3-0ubuntu0.18.04.1, 76.0.1+build1-0ubuntu0.18.04.1, 77.0.1+build1-0ubuntu0.18.04.1 |
| Ubuntu:18.04:LTS | mozjs38 | 0, 38.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu3 |
Timeline
- Jul 15, 2021 CVE Published
- Aug 6, 2021 EPSS Score
- Oct 5, 2021 EPSS Score
- Dec 3, 2021 EPSS Score
- Feb 1, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 22, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jul 31, 2022 EPSS Score
- Sep 28, 2022 EPSS Score
- Nov 27, 2022 EPSS Score
- Jan 25, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-29977 advisory
- https://ubuntu.com/security/notices/USN-5011-1 advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/#CVE-2021-29977 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-29977 third-party-advisory