7.5
CWE
125
Advisory Published
CVE Published
Updated

CVE-2023-4048

First published: Tue Aug 01 2023(Updated: )

An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<115.1
115.1
Mozilla Thunderbird<115.1
115.1
Mozilla Thunderbird<102.14
102.14
Mozilla Firefox ESR<102.14
102.14
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<102.14
Debian Debian Linux=11.0
Debian Debian Linux=12.0
Mozilla Firefox ESR>=102.0<102.14
Mozilla Firefox ESR>=115.0<115.1
Debian Debian Linux=10.0
Mozilla Firefox>=102.0<102.14
Mozilla Firefox>=115.0<115.1
debian/firefox
133.0.3-1
debian/firefox-esr
115.14.0esr-1~deb11u1
128.5.0esr-1~deb11u1
128.3.1esr-1~deb12u1
128.5.0esr-1~deb12u1
128.5.0esr-1
128.5.1esr-1
debian/thunderbird
1:115.12.0-1~deb11u1
1:128.5.0esr-1~deb11u1
1:115.16.0esr-1~deb12u1
1:128.5.0esr-1~deb12u1
1:128.5.2esr-1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2023-4048?

    The severity of CVE-2023-4048 is high (severity value 7).

  • How does CVE-2023-4048 affect Firefox and Firefox ESR?

    CVE-2023-4048 affects Firefox versions < 116 and Firefox ESR versions < 102.14.

  • How does CVE-2023-4048 affect Thunderbird?

    CVE-2023-4048 affects Thunderbird versions < 115.1.

  • How do I fix CVE-2023-4048 in Firefox?

    To fix CVE-2023-4048 in Firefox, update to version 116 or newer.

  • How do I fix CVE-2023-4048 in Thunderbird?

    To fix CVE-2023-4048 in Thunderbird, update to version 115.1 or newer.

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