CVE-2021-21848 - CVE House
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Status published High CVE-2021-21848

An exploitable integer overflow vulnerability exists within the MPEG-4 decoding...

Vulnerability Description

An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. The library will actually reuse the parser for atoms with the “stsz” FOURCC code when parsing atoms that use the “stz2” FOURCC code and can cause an integer overflow 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

GPAC Project
Vulnerable Versions:
GPAC Project Advanced Content commit a8a8d412dabcb129e695c3e7d861fcc81f608304,GPAC Project Advanced Content v1.0.1

Timeline

Official Publish: August 25th, 2021
Last Modified: August 3rd, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-680

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.