// For flags

CVE-2021-3477

Gentoo Linux Security Advisory 202107-27

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

There's a flaw in OpenEXR's deep tile sample size calculations in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, subsequently leading to an out-of-bounds read. The greatest risk of this flaw is to application availability.

Se presenta un fallo en los cálculos de tamaño de la muestra de mosaicos profundos de OpenEXR versiones anteriores a la 3.0.0-beta. Un atacante que pueda ser capaz de enviar un archivo diseñado para que sea procesado por OpenEXR podría desencadenar un desbordamiento de enteros, posteriormente conllevando a una lectura fuera de límites. El mayor riesgo de este fallo es la disponibilidad de la aplicación.

Multiple vulnerabilities have been found in OpenEXR, the worst of which could result in the arbitrary execution of code. Versions less than 2.5.6 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-30 CVE Reserved
  • 2021-03-31 CVE Published
  • 2024-08-03 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-125: Out-of-bounds Read
  • 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"
 < 2.4.3
Search vendor "Openexr" for product "Openexr" and version " < 2.4.3"
-
Affected
Openexr
Search vendor "Openexr"
 Openexr
Search vendor "Openexr" for product "Openexr"
 >= 2.5.0 < 2.5.4
Search vendor "Openexr" for product "Openexr" and version " >= 2.5.0 < 2.5.4"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected