8.8
CWE
787 119
Advisory Published
Updated

CVE-2020-21547: Buffer Overflow

First published: Fri Sep 17 2021(Updated: )

Libsixel 1.8.2 contains a heap-based buffer overflow in the dither_func_fs function in tosixel.c.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Libsixel=1.8.2

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Frequently Asked Questions

  • What is CVE-2020-21547?

    CVE-2020-21547 is a vulnerability in Libsixel 1.8.2 that allows for a heap-based buffer overflow.

  • What is the severity of CVE-2020-21547?

    The severity of CVE-2020-21547 is high, with a severity score of 8.8.

  • How can I fix the CVE-2020-21547 vulnerability?

    To fix the CVE-2020-21547 vulnerability, update Libsixel to version 1.8.3 or later.

  • What is the CWE for CVE-2020-21547?

    The CWE for CVE-2020-21547 is CWE-119 and CWE-787.

  • Where can I find more information about CVE-2020-21547?

    You can find more information about CVE-2020-21547 at the following reference: [GitHub Issue](https://github.com/saitoha/libsixel/issues/114)

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