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CVE-2021-3476

Published: 30 March 2021

A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
openexr
Launchpad, Ubuntu, Debian
bionic
Released (2.2.0-11.1ubuntu1.6)
focal
Released (2.3.0-6ubuntu0.5)
groovy
Released (2.5.3-2ubuntu0.2)
hirsute Not vulnerable
(2.5.4-1)
impish Not vulnerable
(2.5.4-2)
jammy Not vulnerable
(2.5.7-1)
precise Does not exist

trusty Does not exist

upstream
Released (2.5.4-1)
xenial
Released (2.2.0-10ubuntu2.6)
Patches:
upstream: https://github.com/AcademySoftwareFoundation/openexr/commit/eec0dba242bedd2778c973ae4af112107b33d9c9

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L