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CVE-2019-9791

critical · 9.8

The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

9.8
CVSS
19.9%
EPSS (exploit prob.)
97th
EPSS percentile
2019-04-26
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-843

Affected products

VendorProductAffected versions
mozillafirefox< 60.6.0
mozillafirefox< 66.0
mozillathunderbird< 60.6.0
redhatenterprise_linux8.0
redhatenterprise_linux_eus8.1
redhatenterprise_linux_eus8.2
redhatenterprise_linux_eus8.4
redhatenterprise_linux_server_aus8.2
redhatenterprise_linux_server_aus8.4
redhatenterprise_linux_server_tus8.2
redhatenterprise_linux_server_tus8.4

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2019-9791