VDB

CVE-2021-23979

CVE-2021-23979 PUBLISHED CVSS 8.800000190734863 HIGH

Mozilla developers reported memory safety bugs present in Firefox 85. 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. This vulnerability affects Firefox < 86.

EPSS 0.93% · 59.0th percentile

Risk Scores

CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.93%
59.0th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSmozjs5252.3.1-0ubuntu3, 0, 52.3.1-7fakesync1
Ubuntu:20.04:LTSmozjs520, 52.9.1-1ubuntu3, 52.9.1-1build1
Ubuntu:22.04:LTSmozjs7878.13.0-1, 78.15.0-4ubuntu1, 0
Ubuntu:18.04:LTSfirefox63.0+build2-0ubuntu0.18.04.2, 63.0.3+build1-0ubuntu0.18.04.1, 64.0+build3-0ubuntu0.18.04.1
Ubuntu:18.04:LTSmozjs3838.8.0~repack1-0ubuntu1, 38.8.0~repack1-0ubuntu3, *
Ubuntu:20.04:LTSmozjs680, 68.6.0-1ubuntu1, 68.5.0-1~fakesync
Ubuntu:20.04:LTSfirefox82.0+build2-0ubuntu0.20.04.1, 82.0.2+build1-0ubuntu0.20.04.1, 82.0.3+build1-0ubuntu0.20.04.1
Ubuntu:16.04:LTSfirefox*, 41.0.2+build2-0ubuntu1, 42.0+build2-0ubuntu1

Timeline

  • Feb 24, 2021 CVE Published
  • Apr 14, 2021 EPSS Score
  • Jun 23, 2021 EPSS Score
  • Aug 25, 2021 EPSS Score
  • Dec 30, 2021 EPSS Score
  • Jan 6, 2022 EPSS Score
  • Feb 4, 2022 EPSS Score
  • Mar 3, 2022 EPSS Score
  • May 5, 2022 EPSS Score
  • Jul 7, 2022 EPSS Score
  • Sep 9, 2022 EPSS Score
  • Nov 11, 2022 EPSS Score

References

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