CWE
125
Advisory Published
Updated

CVE-2020-18778

First published: Mon Aug 23 2021(Updated: )

In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_p_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
libavutil=12.3

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2020-18778?

    CVE-2020-18778 has a severity level categorized as high due to its potential to cause a denial-of-service.

  • How do I fix CVE-2020-18778?

    To mitigate CVE-2020-18778, upgrade to a patched version of Libav that addresses this vulnerability.

  • What type of vulnerability is CVE-2020-18778?

    CVE-2020-18778 is classified as a heap-based buffer over-read vulnerability.

  • Which software versions are impacted by CVE-2020-18778?

    CVE-2020-18778 specifically affects Libav version 12.3.

  • What can an attacker achieve with CVE-2020-18778?

    An attacker can exploit CVE-2020-18778 to trigger a denial-of-service condition using a specially crafted file.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203