by Kastro
Paper/Archive/CVE-2020-26972

CVE-2020-26972

Mozilla Firefox — The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attemptin…

EPSS 1%CVSS 9.8
critical.is priorityof 100
44
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 70.7.707 × 2014.1No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.

Affected

ProductAffectedFixed inSource
Firefoxunspecified – < 8484CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refmozilla.org/security/advisories/mfsa2020-54refbugzilla.mozilla.org/show_bug.cgi?id=1671382