VDB
CVE-2021-29981
CVE-2021-29981
PUBLISHED
CVSS 8.800000190734863 HIGH
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.
EPSS 1.01% · 61.8th 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%
61.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | firefox | 0, *, * |
| Ubuntu:18.04:LTS | firefox | *, 61.0.1+build1-0ubuntu0.18.04.1, 62.0+build2-0ubuntu0.18.04.3 |
| Ubuntu:20.04:LTS | mozjs68 | 68.6.0-1ubuntu1, 0, 68.5.0-1~fakesync |
| Ubuntu:20.04:LTS | mozjs52 | 52.9.1-1ubuntu3, 0, 52.9.1-1build1 |
| Ubuntu:20.04:LTS | thunderbird | 1:68.4.2+build2-0ubuntu1, 1:68.4.1+build1-0ubuntu1, 1:68.3.1+build1-0ubuntu2 |
| Ubuntu:22.04:LTS | mozjs78 | 78.13.0-1, 0, 78.15.0-4ubuntu1 |
| Ubuntu:18.04:LTS | mozjs52 | 52.9.1-0ubuntu0.18.04.1, 52.3.1-0ubuntu3, 52.3.1-7fakesync1 |
| Ubuntu:18.04:LTS | thunderbird | 1:60.5.1+build2-0ubuntu0.18.04.1, 1:68.2.2+build1-0ubuntu0.18.04.1, 1:60.8.0+build1-0ubuntu0.18.04.1 |
| Ubuntu:18.04:LTS | mozjs38 | 0, 38.8.0~repack1-0ubuntu1, 38.8.0~repack1-0ubuntu3 |
Timeline
- Aug 11, 2021 CVE Published
- Aug 18, 2021 EPSS Score
- Oct 16, 2021 EPSS Score
- Dec 14, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 11, 2022 EPSS Score
- Feb 22, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 11, 2022 EPSS Score
- Aug 8, 2022 EPSS Score
- Oct 6, 2022 EPSS Score
- Dec 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-29981 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-33/#CVE-2021-29981 third-party-advisory
- https://ubuntu.com/security/notices/USN-5037-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-5248-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-29981 third-party-advisory