CVE-2021-21856 — HIGH (8.8)

Vulnerability Description

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 can cause an integer overflow due to unchecked addition 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

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gpac	Gpac	1.0.1

Related Weaknesses (CWE)

CWE-680 CWE-119

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1299ExploitTechnical DescriptionThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1299ExploitTechnical DescriptionThird Party Advisory

FAQ

What is CVE-2021-21856?

CVE-2021-21856 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 can cause ...

How severe is CVE-2021-21856?

CVE-2021-21856 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-2021-21856?

Check the references section above for vendor advisories and patch information. Affected products include: Gpac Gpac.