medium
5.3
Advisory Published
CVE Published
Updated

CVE-2018-5117

First published: Tue Jan 23 2018(Updated: )

If right-to-left text is used in the addressbar with left-to-right alignment, it is possible in some circumstances to scroll this text to spoof the displayed URL. This issue could result in the wrong URL being displayed as a location, which can mislead users to believe they are on a different site than the one loaded.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<52.6
52.6
Mozilla Thunderbird<52.6
52.6
Mozilla Firefox<58
58
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Redhat Enterprise Linux=6.0
Redhat Enterprise Linux=7.0
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=7.3
Redhat Enterprise Linux Server Aus=7.4
Redhat Enterprise Linux Server Eus=7.3
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
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

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1395508

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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 CVE-2018-5117?

    CVE-2018-5117 is a vulnerability where right-to-left text used in the address bar with left-to-right alignment can be scrolled to spoof the displayed URL.

  • How does CVE-2018-5117 affect users?

    CVE-2018-5117 can mislead users to believe they are on a different site by displaying the wrong URL as the location.

  • What is the severity of CVE-2018-5117?

    CVE-2018-5117 has a severity rating of 5.3 (medium).

  • Which software is affected by CVE-2018-5117?

    Software versions up to and excluding Firefox 58.0, Thunderbird 52.6.0, and Firefox ESR 52.6.0 are affected by CVE-2018-5117.

  • How can I fix CVE-2018-5117?

    To fix CVE-2018-5117, update your software to versions 58.0 (or above) for Firefox, 52.6.0 (or above) for Thunderbird, or 52.6.0 (or above) for Firefox ESR.

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