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CVE-2021-3477

Published: 31 March 2021

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.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
openexr
Launchpad, Ubuntu, Debian
jammy Not vulnerable
(2.5.7-1)
impish Not vulnerable
(2.5.4-2)
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)
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/467be80b75642efbbe6bdace558079f68c16acb1

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H