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% · 60.8th 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%
60.8th 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 4, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 30, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 22, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 29, 2022 EPSS Score
- Jul 28, 2022 EPSS Score
- Sep 25, 2022 EPSS Score
- Jan 21, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-29977 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/#CVE-2021-29977 third-party-advisory
- https://ubuntu.com/security/notices/USN-5011-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-29977 third-party-advisory