CVE-2021-21834

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 when decoding the atom for the “co64” FOURCC 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.

CVSS v3.1

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v3.0

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

CVSS v2.0

6.8 MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS

1.70% chance of exploitation in the next 30 days, 76th percentile

Published

2021-08-25

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297

References

• CVE Record
• NVD entry

Related

• CVE-2021-21833
• CVE-2021-21835
• CVE-2021-21832
• CVE-2021-21836
• CVE-2021-21831
• CVE-2021-21837