High severity8.8OSV Advisory· Published Aug 16, 2021· Updated Jun 17, 2026
CVE-2021-21861
CVE-2021-21861
Description
An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. When processing the 'hdlr' FOURCC code, a specially crafted MPEG-4 input can cause an improper memory allocation resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.
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Affected products
2- Range: =1.0.1
Patches
Vulnerability mechanics
References
2- talosintelligence.com/vulnerability_reports/TALOS-2021-1298nvdExploitThird Party Advisory
- www.debian.org/security/2021/dsa-4966nvdThird Party Advisory
News mentions
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