CVE-2019-9821 PUBLISHED

A use-after-free vulnerability can occur in AssertWorkerThread due to a race condition with shared workers. This results in a potentially exploitable crash. This vulnerability affects Firefox < 67.

EPSS 0.42% · 62.0th percentile

Risk Scores

EPSS Score
0.42%
62.0th percentile

Affected Products

VendorProductVersions
Ubuntu:18.04:LTSmozjs5252.9.1-0ubuntu0.18.04.1, 52.8.1-0ubuntu0.18.04.1, 52.3.1-7fakesync1
Ubuntu:16.04:LTSfirefox45.0.1+build1-0ubuntu1, 46.0+build5-0ubuntu0.16.04.2, 46.0.1+build1-0ubuntu0.16.04.2
Ubuntu:20.04:LTSmozjs520, 52.9.1-1build1, 52.9.1-1ubuntu3
Ubuntu:18.04:LTSmozjs380, 38.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu1
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

Timeline

References

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