CWE
200
Advisory Published
CVE Published
Updated

CVE-2022-29916: Infoleak

First published: Tue May 03 2022(Updated: )

Firefox behaved slightly differently for already known resources when loading CSS resources involving CSS variables. This could have been used to probe the browser history.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Thunderbird<91.9
91.9
Firefox<100.0
Firefox ESR<91.9
Thunderbird<91.9
Firefox<100
100
Firefox ESR<91.9
91.9
<100.0
<91.9
<91.9

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-29916?

    The severity of CVE-2022-29916 is classified as moderate.

  • How do I fix CVE-2022-29916?

    To fix CVE-2022-29916, users should update Firefox to version 100 or later for general releases and to Firefox ESR version 91.9 or later.

  • What software is affected by CVE-2022-29916?

    CVE-2022-29916 affects Mozilla Firefox versions up to 100, Mozilla Firefox ESR versions up to 91.9, and Mozilla Thunderbird versions up to 91.9.

  • Can CVE-2022-29916 lead to data leakage?

    Yes, CVE-2022-29916 can be exploited to potentially probe and leak browser history.

  • Is CVE-2022-29916 a remote attack vector?

    CVE-2022-29916 can be exploited via a remote attack if the user visits a malicious website.

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