high
7.5
Advisory Published
CVE Published
Updated

CVE-2017-5386

First published: Tue Jan 24 2017(Updated: )

WebExtension scripts can use the "data:" protocol to affect pages loaded by other web extensions using this protocol, leading to potential data disclosure or privilege escalation in affected extensions. This vulnerability affects Firefox ESR < 45.7 and Firefox < 51.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
debian/firefox
118.0.2-1
debian/firefox-esr
91.12.0esr-1~deb10u1
115.3.1esr-1~deb10u1
102.15.0esr-1~deb11u1
115.3.1esr-1~deb11u1
102.15.1esr-1~deb12u1
115.3.0esr-1~deb12u1
115.3.0esr-1
115.4.0esr-1
Debian=8.0
Red Hat Enterprise Linux=5.0
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
Red Hat Enterprise Linux Desktop=5.0
Red Hat Enterprise Linux Desktop=6.0
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server=5.0
Red Hat Enterprise Linux Server=6.0
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.3
Red Hat Enterprise Linux Server=7.4
Red Hat Enterprise Linux Server=7.5
Red Hat Enterprise Linux Workstation=5.0
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Firefox<51.0
Firefox ESR<45.7.0
Firefox<51
51
Firefox ESR<45.7
45.7

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1319070

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2017-5386?

    CVE-2017-5386 is classified as a moderate severity vulnerability.

  • How do I fix CVE-2017-5386?

    To mitigate CVE-2017-5386, upgrade to Firefox ESR version 45.7 or later, or Firefox version 51 or later.

  • Which versions of Firefox are affected by CVE-2017-5386?

    CVE-2017-5386 affects Firefox ESR versions prior to 45.7 and Firefox versions prior to 51.

  • Can CVE-2017-5386 lead to privilege escalation?

    Yes, CVE-2017-5386 can potentially lead to privilege escalation in affected web extensions.

  • Is CVE-2017-5386 connected to data disclosure?

    Yes, CVE-2017-5386 can lead to data disclosure through WebExtension scripts using the data: protocol.

Company

Resources

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