Vulnerability Details CVE-2021-21842
An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input can cause an integer overflow when processing an atom using the 'ssix' FOURCC code, due to unchecked arithmetic 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 47.8%
CVSS Severity
CVSS v3 Score 8.8
CVSS v2 Score 6.8
References
Products affected by CVE-2021-21842
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cpe:2.3:a:gpac:gpac:1.0.1
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cpe:2.3:o:debian:debian_linux:10.0
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cpe:2.3:o:debian:debian_linux:11.0