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prionPRIOn knowledge basePRION:CVE-2019-9815
HistoryJul 23, 2019 - 2:15 p.m.

Design/Logic Flaw

2019-07-2314:15:00
PRIOn knowledge base
www.prio-n.com
7

7.7 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

75.6%

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.

CPENameOperatorVersion
firefoxlt67.0
firefox_esrlt60.7
thunderbirdlt60.7

7.7 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

75.6%