VDB
CVE-2021-29977
CVE-2021-29977
PUBLISHED
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 0.41% · 61.4th percentile
Risk Scores
EPSS Score
0.41%
61.4th 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
- Dec 2, 2021 EPSS Score
- Jan 29, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 22, 2022 EPSS Score
- Mar 29, 2022 EPSS Score
- May 27, 2022 EPSS Score
- Jul 26, 2022 EPSS Score
- Sep 23, 2022 EPSS Score
- Nov 20, 2022 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