high
7.5
CWE
200
Advisory Published
CVE Published
Updated

CVE-2016-9904: Infoleak

First published: Tue Dec 13 2016(Updated: )

An attacker could use a JavaScript Map/Set timing attack to determine whether an atom is used by another compartment/zone in specific contexts. This could be used to leak information, such as usernames embedded in JavaScript code, across websites.

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
Thunderbird<45.6
45.6
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 Workstation=5.0
Red Hat Enterprise Linux Workstation=6.0
Red Hat Enterprise Linux Workstation=7.0
Debian=8.0
Firefox<51.0
Firefox ESR<45.6.0
Thunderbird<45.6.0
Firefox<50.1
50.1
Firefox ESR<45.6
45.6

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1317936

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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-2016-9904?

    The severity of CVE-2016-9904 has been classified as high due to its potential to leak sensitive user information across websites.

  • How do I fix CVE-2016-9904?

    To fix CVE-2016-9904, ensure that you are using an updated version of the affected software, such as Firefox 118.0.2-1 or newer.

  • Which software is affected by CVE-2016-9904?

    Affected software includes Mozilla Firefox, Firefox ESR, and Thunderbird versions below the specified remedial versions.

  • What kind of attack does CVE-2016-9904 enable?

    CVE-2016-9904 enables JavaScript timing attacks that could be exploited to gather sensitive information from users.

  • Can CVE-2016-9904 affect users on multiple websites?

    Yes, CVE-2016-9904 can potentially leak information like usernames across different websites by exploiting timing differences.

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