high
7.5
Advisory Published
CVE Published
Updated

CVE-2018-12395

First published: Tue Oct 23 2018(Updated: )

By rewriting the `Host` request headers using the `webRequest` API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. External Reference: <a href="https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/#CVE-2018-12395">https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/#CVE-2018-12395</a>

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<60.3
60.3
Mozilla Firefox<63
63
Mozilla Firefox<63.0
Mozilla Firefox ESR<60.3
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10
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 Eus=7.5
Redhat Enterprise Linux Workstation=6.0
Redhat Enterprise Linux Workstation=7.0
debian/firefox
132.0.2-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.4.0esr-1~deb11u1
128.3.1esr-1~deb12u1
128.4.0esr-1~deb12u1
128.3.1esr-2
128.4.0esr-1

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 for this vulnerability?

    The vulnerability ID for this vulnerability is CVE-2018-12395.

  • How does this vulnerability impact Firefox ESR?

    This vulnerability affects Firefox ESR versions prior to 60.3.

  • How does this vulnerability impact Firefox?

    This vulnerability affects Firefox versions prior to 63.0.

  • How does this vulnerability impact Debian Debian Linux?

    This vulnerability affects Debian Debian Linux version 8.0 and 9.0.

  • How does this vulnerability impact Canonical Ubuntu Linux?

    This vulnerability affects Canonical Ubuntu Linux versions 14.04, 16.04, 18.04, and 18.10.

  • How does this vulnerability impact Redhat Enterprise Linux Desktop?

    This vulnerability affects Redhat Enterprise Linux Desktop versions 6.0 and 7.0.

  • How does this vulnerability impact Redhat Enterprise Linux Server?

    This vulnerability affects Redhat Enterprise Linux Server versions 6.0, 7.0, and 7.5.

  • How does this vulnerability impact Redhat Enterprise Linux Workstation?

    This vulnerability affects Redhat Enterprise Linux Workstation versions 6.0 and 7.0.

  • How can I fix this vulnerability?

    To fix this vulnerability, upgrade to Firefox ESR 60.3 or later and Firefox 63.0 or later.

  • Are there any references for this vulnerability?

    Yes, you can find references for this vulnerability at the following links: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1467523), [Mozilla security advisories](https://www.mozilla.org/en-US/security/advisories/mfsa2018-27/), [CVE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12395).

  • What is the severity of CVE-2018-12395?

    The severity of CVE-2018-12395 is high, with a severity value of 7.5.

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.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203