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CVE-2019-9792

PoC ×2—
CVSS 3.1
9.8 critical
EPSS
13%p96
Published
()
Modified
Description

The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption, which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Vendors
mozillaredhat
Products
firefox, thunderbird, enterprise linux, enterprise linux eus, enterprise linux server aus, enterprise linux server tus
Weakness
CWE-787
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD CVE.org GitHub PoCs EPSS (13.2%)

In the news

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