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
Link | Resource |
---|---|
https://bugzilla.mozilla.org/show_bug.cgi?id=1546544 | Permissions Required Third Party Advisory |
https://mdsattacks.com/ | Third Party Advisory |
https://www.mozilla.org/security/advisories/mfsa2019-13/ | Vendor Advisory |
https://www.mozilla.org/security/advisories/mfsa2019-14/ | Vendor Advisory |
https://www.mozilla.org/security/advisories/mfsa2019-15/ | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mozilla
Published: 2019-07-23T13:24:32
Updated: 2019-07-23T13:24:32
Reserved: 2019-03-14T00:00:00
Link: CVE-2019-9815
JSON object: View
NVD Information
Status : Analyzed
Published: 2019-07-23T14:15:17.030
Modified: 2021-09-08T17:22:01.943
Link: CVE-2019-9815
JSON object: View
Redhat Information
No data.
CWE