8.1

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.

Data is provided by the National Vulnerability Database (NVD)
Mozilla ≫ Firefox Version < 67.0
   Apple ≫ macOS Version-
Mozilla ≫ Firefox ESR Version < 60.7
   Apple ≫ macOS Version-
Mozilla ≫ Thunderbird Version < 60.7
   Apple ≫ macOS Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 1.02% 0.752
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.1 2.2 5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 6.8 8.6 6.4
AV:N/AC:M/Au:N/C:P/I:P/A:P
CWE-203 Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

https://bugzilla.mozilla.org/show_bug.cgi?id=1546544
Third Party Advisory
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https://mdsattacks.com/
Third Party Advisory