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Advisory Published

CVE-2020-21598: Buffer Overflow

First published: Thu Sep 16 2021(Updated: )

libde265 v1.0.4 contains a heap buffer overflow in the ff_hevc_put_unweighted_pred_8_sse function, which can be exploited via a crafted a file.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Struktur Libde265=1.0.4
Debian Debian Linux=10.0
Debian Debian Linux=11.0

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-21598?

    CVE-2020-21598 is a vulnerability in libde265 v1.0.4 that allows for a heap buffer overflow in the ff_hevc_put_unweighted_pred_8_sse function.

  • How can CVE-2020-21598 be exploited?

    CVE-2020-21598 can be exploited by using a crafted file.

  • What is the severity of CVE-2020-21598?

    The severity of CVE-2020-21598 is high with a severity value of 8.8.

  • Which software versions are affected by CVE-2020-21598?

    Versions 1.0.3-1 of libde265 and version 1.0.4 of Struktur Libde265 are affected.

  • How do I fix CVE-2020-21598?

    To fix CVE-2020-21598, update libde265 to versions 1.0.11-0+deb10u4, 1.0.11-0+deb11u1, 1.0.11-1, or 1.0.12-2.


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