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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: mozilla

Published: 2019-04-26T16:13:22

Updated: 2019-05-28T17:06:06

Reserved: 2019-03-14T00:00:00


Link: CVE-2019-9792

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2019-04-26T17:29:01.697

Modified: 2022-03-30T18:49:19.040


Link: CVE-2019-9792

JSON object: View

cve-icon Redhat Information

No data.

CWE