CVE Vulnerabilities

CVE-2021-20296

NULL Pointer Dereference

Published: Apr 01, 2021 | Modified: Dec 13, 2022
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
5.3 LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
LOW

A flaw was found in OpenEXR in versions before 3.0.0-beta. A crafted input file supplied by an attacker, that is processed by the Dwa decompression functionality of OpenEXRs IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Openexr Openexr * 2.4.3 (excluding)
Openexr Openexr 2.5.0 (including) 2.5.4 (excluding)
Openexr Ubuntu bionic *
Openexr Ubuntu esm-apps/focal *
Openexr Ubuntu esm-infra/xenial *
Openexr Ubuntu focal *
Openexr Ubuntu groovy *
Openexr Ubuntu trusty *
Openexr Ubuntu upstream *
Openexr Ubuntu xenial *

Potential Mitigations

References