CVE-2018-5102: Use After Free

Published Jan 23, 2018
·
Updated

A use-after-free vulnerability can occur when manipulating HTML media elements with media streams, resulting in a potentially exploitable crash.

Affected Software

25 affected componentsFixes available
Mozilla Thunderbird<52.6
52.6
Mozilla Firefox<58
58
Mozilla Firefox ESR<52.6
52.6
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
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=7.4
redhat Enterprise Linux Server Eus=7.4
redhat Enterprise Linux Server Eus=7.5
redhat Enterprise Linux Workstation=6.0
redhat Enterprise Linux Workstation=7.0
Mozilla Firefox<58.0
Mozilla Firefox ESR<52.6.0
Mozilla Thunderbird<52.6.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=17.10
Mozilla Firefox<52.6.0
debian/firefox
147.0.4-1
debian/firefox-esr
115.14.0esr-1~deb11u1140.7.0esr-1~deb11u1128.14.0esr-1~deb12u1140.7.0esr-1~deb12u1140.4.0esr-1~deb13u1140.7.0esr-1~deb13u1140.7.0esr-1
debian/thunderbird
1:115.12.0-1~deb11u11:140.7.1esr-1~deb11u11:140.6.0esr-1~deb12u11:140.7.1esr-1~deb12u11:140.6.0esr-1~deb13u11:140.7.1esr-1~deb13u11:140.7.1esr-1

Event History

Jan 23, 2018
CVE Published
12:00 AM
Data Sourced
via Red Hat·11:17 PM
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·11:05 PM
Description
Feb 20, 2026
Data Sourced
via Ubuntu·12:47 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Debian·12:47 AM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the vulnerability ID of this vulnerability?

The vulnerability ID is CVE-2018-5102.

2

Which software versions are affected by this vulnerability?

This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.

3

What is the severity rating of CVE-2018-5102?

The severity rating of CVE-2018-5102 is critical with a score of 9.8.

4

Is there a fix available for this vulnerability?

Yes, the vulnerability can be fixed by updating to Firefox version 58.0 or higher, Thunderbird version 52.6.0 or higher, or the latest version of Ubuntu's firefox package.

5

Where can I find more information about CVE-2018-5102?

You can find more information about CVE-2018-5102 in the following references: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1419363), [Mozilla Security Advisory](https://www.mozilla.org/en-US/security/advisories/mfsa2018-02/), [Mozilla Security Advisories](https://www.mozilla.org/security/advisories/mfsa2018-02/)

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203