// For flags

CVE-2021-21861

 

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An exploitable integer truncation vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. When processing the 'hdlr' FOURCC code, a specially crafted MPEG-4 input can cause an improper memory allocation 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.

Se presenta una vulnerabilidad de truncamiento de enteros explotable dentro de la funcionalidad MPEG-4 decoding de la biblioteca GPAC Project en Advanced Content versión v1.0.1. Cuando se procesa el código FOURCC "hdlr", una entrada MPEG-4 especialmente diseñada puede causar una asignación de memoria inapropiada resultando en un desbordamiento del búfer en la región heap de la memoria que causa una corrupción de la memoria. Un atacante puede convencer a un usuario de abrir un vídeo para desencadenar esta vulnerabilidad.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-04 CVE Reserved
  • 2021-08-16 CVE Published
  • 2024-05-01 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-680: Integer Overflow to Buffer Overflow
  • CWE-681: Incorrect Conversion between Numeric Types
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Gpac
Search vendor "Gpac"
 Gpac
Search vendor "Gpac" for product "Gpac"
 1.0.1
Search vendor "Gpac" for product "Gpac" and version "1.0.1"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected