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CVE-2021-29947 PUBLISHED

Mozilla developers and community members reported memory safety bugs present in Firefox 87. 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 < 88.

EPSS 0.35% · 57.1th percentile

Risk Scores

EPSS Score
0.35%
57.1th percentile

Affected Products

VendorProductVersions
Ubuntu:20.04:LTSmozjs520, 52.9.1-1build1, 52.9.1-1ubuntu3
Ubuntu:18.04:LTSfirefox56.0+build6-0ubuntu1, 59.0.2+build1-0ubuntu1, 59.0.1+build1-0ubuntu1
Ubuntu:22.04:LTSmozjs7878.13.0-1, 78.15.0-2, 78.15.0-4ubuntu1
Ubuntu:18.04:LTSmozjs5252.8.1-0ubuntu0.18.04.1, 52.3.1-0ubuntu3, 52.3.1-7fakesync1
Ubuntu:20.04:LTSmozjs6868.6.0-1ubuntu1, 68.6.0-1, 68.5.0-2~fakesync
Ubuntu:16.04:LTSfirefox81.0+build2-0ubuntu0.16.04.1, 81.0.2+build1-0ubuntu0.16.04.1, 82.0+build2-0ubuntu0.16.04.5
Ubuntu:20.04:LTSfirefox73.0+build3-0ubuntu1, 74.0+build1-0ubuntu1, 74.0+build2-0ubuntu1
Ubuntu:18.04:LTSmozjs3838.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu3, 38.8.0~repack1-0ubuntu1

Timeline

References

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