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CVE-2019-9815 PUBLISHED

If hyperthreading is not disabled, a timing attack vulnerability exists, similar to previous Spectre attacks. Apple has shipped macOS 10.14.5 with an option to disable hyperthreading in applications running untrusted code in a thread through a new sysctl. Firefox now makes use of it on the main thread and any worker threads. *Note: users need to update to macOS 10.14.5 in order to take advantage of this change.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

EPSS 1.02% · 77.1th percentile

Risk Scores

EPSS Score
1.02%
77.1th percentile

Affected Products

VendorProductVersions
Ubuntu:20.04:LTSmozjs520, 52.9.1-1ubuntu3, 52.9.1-1build1
Ubuntu:18.04:LTSmozjs5252.8.1-0ubuntu0.18.04.1, 52.9.1-0ubuntu0.18.04.1, 0
Ubuntu:18.04:LTSmozjs38*, 38.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu1

Timeline

References

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