CVE-2021-21846
HIGH 8.8EPSS 2.0%
Multiple exploitable integer overflow vulnerabilities exist within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input in “stsz” decoder 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.
- Affected
- GPAC
- CVSS v3.1 NVD
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS v3.0 CISCO
- 8.8 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS v2.0 NVD
- 6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P - EPSS
- 2.01% chance of exploitation in the next 30 days, 81st percentile
- Published
- 2021-08-18
- Updated
- 2024-08-03
Proof-of-concept exploits (2)
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1297