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CVE-2021-23987

Public on 2021-03-31
Modified on 2021-04-21
Description

The Mozilla Foundation Security Advisory describes this issue as:

Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.

Severity
Important
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CVSS v3 Base Score
8.8
See breakdown
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core thunderbird 2021-04-20 17:56 ALAS2-2021-1632

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD CVSSv3 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD CVSSv2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

References

Red Hat: CVE-2021-23987 Mitre: CVE-2021-23987 FAQs regarding Amazon Linux ALAS/CVE Severity