medium
4.3
CWE
20
Advisory Published
Updated

CVE-2017-5451: Input Validation

First published: Wed Apr 19 2017(Updated: )

A mechanism to spoof the addressbar through the user interaction on the addressbar and the "onblur" event. The event could be used by script to affect text display to make the loaded site appear to be different from the one actually loaded within the addressbar. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Thunderbird<52.1
52.1
Red Hat Enterprise Linux=6.0
Red Hat Enterprise Linux=7.0
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=7.3
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=6.0
Red Hat Enterprise Linux Workstation=7.0
Firefox<53.0
Firefox ESR<52.1.0
Thunderbird<52.1.0
Firefox<53
53
Firefox ESR<52.1
52.1
debian/firefox
137.0-1

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1273537

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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-2017-5451?

    CVE-2017-5451 is categorized as a moderate severity vulnerability.

  • How do I fix CVE-2017-5451?

    To fix CVE-2017-5451, update your Mozilla Thunderbird, Firefox ESR, or Firefox to the latest version beyond the affected versions.

  • Which versions of Mozilla Thunderbird are affected by CVE-2017-5451?

    CVE-2017-5451 affects Mozilla Thunderbird versions up to 52.1.

  • Which versions of Firefox are affected by CVE-2017-5451?

    CVE-2017-5451 impacts Firefox versions up to 53 and Firefox ESR versions up to 52.1.

  • Is CVE-2017-5451 a user interaction vulnerability?

    Yes, CVE-2017-5451 is a user interaction vulnerability that allows spoofing of the address bar.

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