CWE
416
Advisory Published
CVE Published
Updated

CVE-2023-4573: Use After Free

First published: Tue Aug 29 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<115.2
115.2
Mozilla Thunderbird<102.15
102.15
Mozilla Thunderbird<115.2
115.2
Mozilla Firefox ESR<102.15
102.15
Mozilla Firefox<117
117
Mozilla Firefox<117.0
Mozilla Firefox ESR<102.15
Mozilla Firefox ESR>=115.0<115.2
Mozilla Thunderbird<115.2
redhat/firefox<102.15
102.15
redhat/thunderbird<102.15
102.15
redhat/firefox<115.2
115.2
redhat/thunderbird<115.2
115.2
Mozilla Firefox>=115.0<115.2
debian/firefox
134.0.2-2
debian/firefox-esr
115.14.0esr-1~deb11u1
128.6.0esr-1~deb11u3
128.5.0esr-1~deb12u1
128.6.0esr-1~deb12u1
128.5.0esr-1
128.6.0esr-4
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.6.0esr-1~deb11u1
1:128.5.0esr-1~deb12u1
1:128.6.0esr-1~deb12u1
1:128.6.0esr-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-4573?

    CVE-2023-4573 is a vulnerability in Mozilla Firefox and Thunderbird that could lead to a use-after-free causing a potentially exploitable crash.

  • Which software is affected by CVE-2023-4573?

    CVE-2023-4573 affects Firefox versions less than 117, Firefox ESR versions less than 102.15, Thunderbird versions less than 102.15, and Thunderbird versions less than 115.2.

  • What is the severity of CVE-2023-4573?

    CVE-2023-4573 has a severity rating of 6.5 (High).

  • How can I fix CVE-2023-4573?

    To fix CVE-2023-4573, update your Mozilla Firefox or Thunderbird to the latest version, which is 117 or 102.15, respectively.

  • Where can I find more information about CVE-2023-4573?

    You can find more information about CVE-2023-4573 on the Mozilla website and Bugzilla.

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