VDB
CVE-2020-26972
CVE-2020-26972
PUBLISHED
The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.
EPSS 0.71% · 72.6th percentile
Risk Scores
EPSS Score
0.71%
72.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | firefox | *, 0, 41.0.2+build2-0ubuntu1 |
| Ubuntu:18.04:LTS | mozjs52 | 0, 52.9.1-0ubuntu0.18.04.1, 52.8.1-0ubuntu0.18.04.1 |
| Ubuntu:20.04:LTS | mozjs68 | 68.6.0-1, 68.6.0-1ubuntu1, 0 |
| Ubuntu:20.04:LTS | firefox | *, 0, 74.0+build2-0ubuntu2 |
| Ubuntu:18.04:LTS | mozjs38 | 0, *, 38.8.0~repack1-0ubuntu4 |
| Ubuntu:18.04:LTS | firefox | 79.0+build1-0ubuntu0.18.04.1, 80.0+build2-0ubuntu0.18.04.1, 80.0.1+build1-0ubuntu0.18.04.1 |
| Ubuntu:22.04:LTS | mozjs78 | 78.13.0-1, 78.15.0-4ubuntu1, 78.15.0-2 |
| Ubuntu:20.04:LTS | mozjs52 | 0, 52.9.1-1ubuntu3, 52.9.1-1build1 |
Timeline
- Dec 15, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 22, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 27, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 5, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-26972 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/#CVE-2020-26972 third-party-advisory
- https://ubuntu.com/security/notices/USN-4671-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-26972 third-party-advisory