// For flags

CVE-2021-21947

 

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

Two heap-based buffer overflow vulnerabilities exists in the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger these vulnerabilities.This heap-based buffer overflow takes place when the `SOF3` precision is greater or equal than 9.

Se presentan dos vulnerabilidades de desbordamiento de búfer en la región heap de la memoria en la funcionalidad del analizador de imágenes Huffman sin pérdidas JPEG-JFIF de Accusoft ImageGear versión 19.10. Un archivo especialmente diseñado puede conllevar a un desbordamiento del búfer de la pila. Un atacante puede proporcionar un archivo malicioso para desencadenar estas vulnerabilidades. Este desbordamiento de búfer en la región heap de la memoria tiene lugar cuando la precisión de `SOF3` es mayor o igual que 9.

*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
Low
Privileges Required
None
User Interaction
None
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
  • 2022-04-14 CVE Published
  • 2023-11-05 EPSS Updated
  • 2024-09-16 CVE Updated
  • 2024-09-16 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-122: Heap-based Buffer Overflow
  • CWE-129: Improper Validation of Array Index
CAPEC
References (1)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Accusoft
Search vendor "Accusoft"
Imagegear
Search vendor "Accusoft" for product "Imagegear"
19.10
Search vendor "Accusoft" for product "Imagegear" and version "19.10"
-
Affected