CVE-2019-9815

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.

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=1546544	Permissions Required Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-15/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/	Vendor Advisory
https://mdsattacks.com/	Third Party Advisory

Configuration 1

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Published : 2019-07-23 02:15

Updated : 2021-09-08 05:22

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NVD link : CVE-2019-9815

Mitre link : CVE-2019-9815

Apple

Firefox

Firefox Esr

Macos

Mozilla

Thunderbird

CWE-203