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HIGH

Mozilla: Integer overflow during Unicode conversion while loading JavaScript

Published Feb 28, 2019

Description

A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird < 60.3.

Affected products

Remediation

No remediation recorded yet.

References (25)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mozilla
Published Feb 28, 2019
Updated Aug 5, 2024
Reserved Jun 14, 2018
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Important
Public date Oct 23, 2018
ENISA EUVD
Assigner mozilla
Published Feb 28, 2019
Updated Aug 5, 2024
Exploited since n/a
EUVD-2018-4367