CVE-2018-5178: Buffer Overflow

Published May 9, 2018
·
Updated

A buffer overflow was found during UTF8 to Unicode string conversion within JavaScript with extremely large amounts of data. This vulnerability requires the use of a malicious or vulnerable legacy extension in order to occur.

Affected Software

25 affected componentsFixes available
Mozilla Thunderbird<52.8
52.8
Mozilla Firefox ESR<52.8
52.8
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Mozilla Firefox ESR<52.8.0
Mozilla Thunderbird<52.8.0
Mozilla Thunderbird ESR<52.8.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Canonical Ubuntu Linux=18.04
redhat Enterprise Linux Desktop=6.0
redhat Enterprise Linux Desktop=7.0
redhat Enterprise Linux Server=6.0
redhat Enterprise Linux Server=7.0
redhat Enterprise Linux Server Aus=7.6
redhat Enterprise Linux Server Eus=7.5
redhat Enterprise Linux Server Eus=7.6
redhat Enterprise Linux Server Tus=7.6
redhat Enterprise Linux Workstation=6.0
redhat Enterprise Linux Workstation=7.0
Mozilla Firefox<52.8.0
debian/firefox-esr
115.14.0esr-1~deb11u1140.7.0esr-1~deb11u1128.14.0esr-1~deb12u1140.8.0esr-1~deb12u1140.4.0esr-1~deb13u1140.8.0esr-1~deb13u1140.7.0esr-1140.8.0esr-1
debian/thunderbird
1:115.12.0-1~deb11u11:140.8.0esr-1~deb11u11:140.6.0esr-1~deb12u11:140.8.0esr-1~deb12u11:140.6.0esr-1~deb13u11:140.8.0esr-1~deb13u11:140.7.1esr-11:140.8.0esr-1

Event History

May 9, 2018
CVE Published
via Mozilla·12:00 AM
Data Sourced
via Red Hat·07:16 AM
DescriptionSeverityAffected Software
Jun 11, 2018
CVE Published
via MITRE·09:00 PM
Data Sourced
via MITRE·09:00 PM
DescriptionWeakness
Data Sourced
via NVD·09:29 PM
DescriptionSeverityWeaknessAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:06 PM
Description
Nov 30, 2025
Data Sourced
via Ubuntu·06:17 PM
RemedyDescriptionSeverityAffected Software
Mar 1, 2026
Data Sourced
via Debian·12:57 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2018-5178?

The severity of CVE-2018-5178 is 8.1 (high).

2

Which software versions are affected by CVE-2018-5178?

CVE-2018-5178 affects Thunderbird ESR < 52.8, Thunderbird < 52.8, Mozilla Firefox ESR < 52.8, Mozilla Thunderbird < 52.8, and Debian Debian Linux (versions 7.0, 8.0, and 9.0).

3

How can I fix CVE-2018-5178?

To fix CVE-2018-5178, update your software to Thunderbird ESR 52.8 or later, Thunderbird 52.8 or later, Mozilla Firefox ESR 52.8 or later, or Mozilla Thunderbird 52.8 or later.

4

Are there any references for CVE-2018-5178?

Yes, you can find references for CVE-2018-5178 at the following links: https://bugzilla.mozilla.org/show_bug.cgi?id=1443891, https://www.mozilla.org/en-US/security/advisories/mfsa2018-12/, http://www.securityfocus.com/bid/104138.

5

What is the Common Weakness Enumeration (CWE) for CVE-2018-5178?

The Common Weakness Enumeration (CWE) for CVE-2018-5178 is 119.

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