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HIGH

Mozilla: Out-of-bounds write with malicious MAR file

Published Oct 18, 2018

Description

When the Mozilla Updater opens a MAR format file which contains a very long item filename, an out-of-bounds write can be triggered, leading to a potentially exploitable crash. This requires running the Mozilla Updater manually on the local system with the malicious MAR file in order to occur. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

Affected products

Remediation

Red Hat statement

This flaw cannot be exploited through email in Thunderbird as scripting is disabled in this for email content. It may be possible to exploit through Feeds (Atom or RSS) or other browser-like contexts.

References (19)

Change history (0)

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Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mozilla
Published Oct 18, 2018
Updated Aug 5, 2024
Reserved Jun 14, 2018
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Moderate
Public date Sep 5, 2018