// For flags

CVE-2021-20304

Gentoo Linux Security Advisory 202210-31

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A flaw was found in OpenEXR's hufDecode functionality. This flaw allows an attacker who can pass a crafted file to be processed by OpenEXR, to trigger an undefined right shift error. The highest threat from this vulnerability is to system availability.

Se ha encontrado un fallo en la funcionalidad hufDecode de OpenEXR. Este fallo permite a un atacante que pueda pasar un archivo diseñado para ser procesado por OpenEXR, desencadenar un error de desplazamiento a la derecha no definido. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema.

Multiple vulnerabilities have been discovered in OpenEXR, the worst of which could result in arbitrary code execution. Versions less than 3.1.5 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-17 CVE Reserved
  • 2022-08-23 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-190: Integer Overflow or Wraparound
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openexr
Search vendor "Openexr"
 Openexr
Search vendor "Openexr" for product "Openexr"
 <= 2.5.7
Search vendor "Openexr" for product "Openexr" and version " <= 2.5.7"
-
Affected