CVE-2021-29945

Public on 2021-05-20
Modified on 2021-05-24
Description
The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. *Note: This issue only affected x86-32 platforms. Other platforms are unaffected.*. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
6.1
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core thunderbird 2021-05-24 ALAS2-2021-1644 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2021-29945 Mitre: CVE-2021-29945