Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade RHEL:7
firefox
to version 0:60.6.0-3.el7_6 or higher.
This issue was patched in RHSA-2019:0622
.
Note: Versions mentioned in the description apply only to the upstream firefox
package and not the firefox
package as distributed by RHEL
.
See How to fix?
for RHEL:7
relevant fixed versions and status.
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.