Integer Overflow in MPEG-4 Decoding of GPAC Project on Advanced Content Library
CVE-2021-21848

8.8HIGH

Key Information:

Vendor

Gpac

Status
Gpac Project
Vendor
CVE Published:
25 August 2021

What is CVE-2021-21848?

An integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project's Advanced Content Library version 1.0.1. This flaw arises when the library reuses the parser for atoms with the 'stsz' FOURCC code while parsing atoms using the 'stz2' FOURCC code. The unchecked arithmetic during this process can lead to an integer overflow, causing a heap-based buffer overflow and subsequent memory corruption. An attacker can exploit this vulnerability by persuading a user to open a specially crafted video file.

Affected Version(s)

GPAC Project GPAC Project Advanced Content commit a8a8d412dabcb129e695c3e7d861fcc81f608304,GPAC Project Advanced Content v1.0.1

References

https://talosintelligence.com/vulnerability_reports/TALOS...
x_refsource_MISC
https://www.debian.org/security/2021/dsa-4966
vendor-advisoryx_refsource_DEBIAN

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.