VDB
CVE-2020-26972
CVE-2020-26972
PUBLISHED
CVSS 9.800000190734863 CRITICAL
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 1.31% · 70.5th percentile
Risk Scores
CVSS 3.1
9.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
1.31%
70.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | firefox | 58.0.1+build1-0ubuntu0.16.04.1, 0, 41.0.2+build2-0ubuntu1 |
| Ubuntu:18.04:LTS | mozjs52 | 52.9.1-0ubuntu0.18.04.1, 0, 52.3.1-0ubuntu3 |
| Ubuntu:20.04:LTS | mozjs68 | 68.6.0-1, 0, 68.6.0-1ubuntu1 |
| Ubuntu:20.04:LTS | firefox | 82.0.2+build1-0ubuntu0.20.04.1, 82.0.3+build1-0ubuntu0.20.04.1, 83.0+build2-0ubuntu0.20.04.1 |
| Ubuntu:18.04:LTS | mozjs38 | *, 0, 38.8.0~repack1-0ubuntu3 |
| Ubuntu:18.04:LTS | firefox | 77.0.1+build1-0ubuntu0.18.04.1, 78.0.1+build1-0ubuntu0.18.04.1, 78.0.2+build2-0ubuntu0.18.04.1 |
| 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 23, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Dec 30, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 4, 2022 EPSS Score
- May 6, 2022 EPSS Score
- Jul 8, 2022 EPSS Score
- Sep 10, 2022 EPSS Score
- Nov 13, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-26972 advisory
- https://ubuntu.com/security/notices/USN-4671-1 advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-54/#CVE-2020-26972 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-26972 third-party-advisory