medium
6.5
CWE
346
Advisory Published
CVE Published
Updated

CVE-2018-18494

First published: Tue Dec 11 2018(Updated: )

A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascript `location` property to cause a redirection to another site using `performance.getEntries()`. This is a same-origin policy violation and could allow for data theft. External Reference: <a href="https://www.mozilla.org/en-US/security/advisories/mfsa2018-30/#CVE-2018-18494">https://www.mozilla.org/en-US/security/advisories/mfsa2018-30/#CVE-2018-18494</a>

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Thunderbird<60.4
60.4
Firefox<64
64
Firefox ESR<60.4
60.4
Firefox<64.0
Firefox ESR<60.4.0
Thunderbird<60.4.0
Debian Linux=8.0
Debian Linux=9.0
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=18.10
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=7.6
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
debian/firefox
137.0.1-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.9.0esr-1~deb11u1
128.8.0esr-1~deb12u1
128.9.0esr-1~deb12u1
128.9.0esr-2
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.9.0esr-1~deb11u1
1:128.8.0esr-1~deb12u1
1:128.9.0esr-1~deb12u1
1:128.9.0esr-1

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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-2018-18494?

    CVE-2018-18494 is a vulnerability that allows the theft of cross-origin URL entries when using the Javascript location property to cause a redirection to another site using performance.getEntries().

  • Which software is affected by CVE-2018-18494?

    Mozilla Firefox (up to version 64), Mozilla Firefox ESR (up to version 60.4), and Mozilla Thunderbird (up to version 60.4) are affected by CVE-2018-18494.

  • What is the severity of CVE-2018-18494?

    CVE-2018-18494 has a severity rating of 6.5 (High).

  • How can I fix CVE-2018-18494?

    Update Mozilla Firefox to version 64 or later, Mozilla Firefox ESR to version 60.4.1 or later, and Mozilla Thunderbird to version 60.4.1 or later to fix CVE-2018-18494.

  • Where can I find more information about CVE-2018-18494?

    You can find more information about CVE-2018-18494 on the Mozilla Bugzilla and Mozilla security advisories websites.

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