CVE-2021-23960
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- CVE-2021-23960
CVE Details
| Release Date: | 2021-02-26 | |
| Impact: | None | What is this? |
Description
Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.
See more information about CVE-2021-23960 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 8.8 |
| Vector String: | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Version: | 3.0 |
| Attack Vector: | Network |
| Attack Complexity: | Low |
| Privileges Required: | None |
| User Interaction: | Required |
| Scope: | Unchanged |
| Confidentiality Impact: | High |
| Integrity Impact: | High |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 7 (firefox) | ELSA-2021-0290 | 2021-01-28 |
| Oracle Linux version 7 (thunderbird) | ELSA-2021-0297 | 2021-01-29 |
| Oracle Linux version 8 (firefox) | ELSA-2021-0288 | 2021-01-28 |
| Oracle Linux version 8 (thunderbird) | ELSA-2021-0298 | 2021-01-29 |
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