CVE-2021-20303

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.

Un fallo encontrado en la función dataWindowForTile() del archivo IlmImf/ImfTiledMisc.cpp. Un atacante que sea capaz de enviar un archivo diseñado para ser procesado por OpenEXR podría desencadenar un desbordamiento de enteros, conllevando a una escritura fuera de límites en la pila. El mayor impacto de esta falla es la disponibilidad de la aplicación, con algún impacto potencial en la integridad de los datos también

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2022-03-04 CVE Published
2024-08-03 CVE Updated
2024-10-08 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-190: Integer Overflow or Wraparound

CAPEC

References (4)

URL	Tag	Source
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://github.com/AcademySoftwareFoundation/openexr/pull/831	2023-11-07

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1939151	2023-11-07

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"				< 2.5.4 Search vendor "Openexr" for product "Openexr" and version " < 2.5.4"		-		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