critical
9.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2018-5102: Use After Free

First published: Tue 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.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
debian/firefox
131.0.2-2
debian/firefox-esr
115.14.0esr-1~deb11u1
128.3.1esr-1~deb11u1
115.14.0esr-1~deb12u1
128.3.1esr-1~deb12u1
128.3.0esr-2
128.3.1esr-2
debian/thunderbird
1:115.12.0-1~deb11u1
1:115.16.0esr-1~deb11u1
1:115.12.0-1~deb12u1
1:115.16.0esr-1~deb12u1
1:128.2.0esr-1
1:128.3.0esr-1
Debian=7.0
Debian=8.0
Debian=9.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Firefox<58.0
Firefox ESR<52.6.0
Thunderbird<52.6.0
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=17.10
Thunderbird<52.6
52.6
Firefox<58
58
Firefox ESR<52.6
52.6

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID of this vulnerability?

    The vulnerability ID is CVE-2018-5102.

  • Which software versions are affected by this vulnerability?

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

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

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

  • 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.

  • 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/)

Company

Resources

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.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203