A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-1648-1 firefox-esr security update
Debian DLA Debian DLA DLA-1678-1 thunderbird security update
Debian DSA Debian DSA DSA-4376-1 firefox-esr security update
Debian DSA Debian DSA DSA-4392-1 thunderbird security update
Ubuntu USN Ubuntu USN USN-3874-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-3897-1 Thunderbird vulnerabilities
Fixes

Solution

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-05T11:08:21.883Z

Reserved: 2018-10-19T00:00:00.000Z

Link: CVE-2018-18500

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-02-05T21:29:00.330

Modified: 2024-11-21T03:56:03.420

Link: CVE-2018-18500

cve-icon Redhat

Severity : Critical

Publid Date: 2019-01-29T00:00:00Z

Links: CVE-2018-18500 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses