A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. 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: 2019-05-13T09:06:07

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


Link: CVE-2019-9793

JSON object: View

cve-icon NVD Information

Status : Modified

Published: 2019-04-26T17:29:01.850

Modified: 2019-05-13T10:29:05.740


Link: CVE-2019-9793

JSON object: View

cve-icon Redhat Information

No data.

CWE