CVE-2019-9815 (GCVE-0-2019-9815)
Vulnerability from cvelistv5
Published
2019-07-23 13:24
Modified
2024-08-04 22:01
Severity ?
CWE
  • Disable hyperthreading on content JavaScript threads on macOS
Summary
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.
References
security@mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1546544Permissions Required, Third Party Advisory
security@mozilla.orghttps://mdsattacks.com/Third Party Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-14/Vendor Advisory
security@mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2019-15/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1546544Permissions Required, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://mdsattacks.com/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2019-13/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2019-14/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2019-15/Vendor Advisory
Impacted products
Vendor Product Version
Mozilla Thunderbird Version: unspecified   < 60.7
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   Mozilla Firefox Version: unspecified   < 67
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   Mozilla Firefox ESR Version: unspecified   < 60.7
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