7.5
CWE
120
Advisory Published
CVE Published
Updated

CVE-2023-4055

First published: Tue Aug 01 2023(Updated: )

Last updated 24 July 2024

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

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<102.14
102.14
Mozilla Thunderbird<102.14
102.14
Mozilla Firefox ESR<115.1
115.1
Mozilla Thunderbird<115.1
115.1
redhat/firefox<102.14
102.14
redhat/firefox<115.1
115.1
redhat/thunderbird<102.14
102.14
redhat/thunderbird<115.1
115.1
Mozilla Firefox<116
116
Mozilla Firefox<116.0
Mozilla Firefox ESR>=102.0<102.14
Mozilla Firefox ESR>=115.0<115.1
Debian Debian Linux=11.0
Debian Debian Linux=12.0
Mozilla Firefox>=102.0<102.14
Mozilla Firefox>=115.0<115.1
debian/firefox
132.0.2-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.4.0esr-1~deb11u1
128.3.1esr-1~deb12u1
128.4.0esr-1~deb12u1
128.3.1esr-2
128.4.0esr-1
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.4.3esr-1~deb11u1
1:115.16.0esr-1~deb12u1
1:128.4.0esr-1~deb12u1
1:128.4.2esr-1
1:128.4.3esr-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-4055?

    CVE-2023-4055 is a vulnerability that occurs when the number of cookies per domain exceeds the limit in `document.cookie`, which may result in requests being sent with some cookies missing.

  • Which software is affected by CVE-2023-4055?

    CVE-2023-4055 affects Mozilla Thunderbird versions up to 115.1, Mozilla Firefox versions up to 116, and their corresponding packages in Red Hat and Ubuntu.

  • What is the severity of CVE-2023-4055?

    CVE-2023-4055 has a severity rating of 7.5 (high).

  • How can I fix CVE-2023-4055?

    To fix CVE-2023-4055, update Mozilla Thunderbird to version 115.1 or later, update Mozilla Firefox to version 116 or later, and apply the necessary security patches for the affected packages in Red Hat or Ubuntu.

  • Where can I find more information about CVE-2023-4055?

    You can find more information about CVE-2023-4055 in the Mozilla Security Advisories MFSA2023-30 and MFSA2023-31, as well as the Bugzilla report.

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