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.
Metrics
Affected Vendors & Products
References
History
No history.
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Status: PUBLISHED
Assigner: mozilla
Published:
Updated: 2024-08-04T22:01:55.125Z
Reserved: 2019-03-14T00:00:00
Link: CVE-2019-9815
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No data.
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Status : Modified
Published: 2019-07-23T14:15:17.030
Modified: 2024-11-21T04:52:21.973
Link: CVE-2019-9815
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