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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gpac | Gpac | 1.0.1 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297ExploitThird Party Advisory
- https://www.debian.org/security/2021/dsa-4966Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1297ExploitThird Party Advisory
- https://www.debian.org/security/2021/dsa-4966Third Party Advisory
FAQ
What is CVE-2021-21848?
CVE-2021-21848 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ato...
How severe is CVE-2021-21848?
CVE-2021-21848 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21848?
Check the references section above for vendor advisories and patch information. Affected products include: Gpac Gpac, Debian Debian Linux.