Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2021-23960

Published: Feb 26, 2021 | Modified: Mar 03, 2021
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-23960
CWEhttps://cwe.mitre.org/data/definitions/.html

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.

Affected Software

Name Vendor Start Version End Version
Firefox Mozilla * 85.0 (excluding)
Firefox_esr Mozilla * 78.7 (excluding)
Thunderbird Mozilla * 78.7 (excluding)

References

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