8.8
CWE
119 120
Advisory Published
CVE Published
Updated

CVE-2023-4582: Buffer Overflow

First published: Tue Aug 29 2023(Updated: )

Due to large allocation checks in Angle for glsl shaders being too lenient a buffer overflow could have occured when allocating too much private shader memory on mac OS. *This bug only affects Firefox on macOS. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox ESR<115.2
115.2
Mozilla Thunderbird<115.2
115.2
Mozilla Firefox<117
117
Mozilla Firefox<117.0
Mozilla Firefox ESR<115.2
Mozilla Thunderbird<115.2
Apple macOS
All of
Any of
<117.0
<115.2
<115.2

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-4582?

    CVE-2023-4582 is a vulnerability that could result in a buffer overflow when allocating too much private shader memory on macOS in Firefox versions before 117.

  • Which operating systems are affected by CVE-2023-4582?

    Only macOS is affected by CVE-2023-4582. Other operating systems are unaffected.

  • What is the severity of CVE-2023-4582?

    CVE-2023-4582 has a severity rating of 8.8 (high).

  • How can I fix CVE-2023-4582?

    To fix CVE-2023-4582, make sure you update Firefox to version 117 or higher.

  • Where can I find more information about CVE-2023-4582?

    You can find more information about CVE-2023-4582 in the Mozilla Security Advisory [link](https://www.mozilla.org/en-US/security/advisories/mfsa2023-36/).

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