CVE-2021-20296

2021-04-0100:00:00

ubuntu.com

openexr

null pointer dereference

crafted input file

system availability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS

0.001

Percentile

48.6%

JSON

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 OpenEXR’s IlmImf library, could cause a NULL pointer
dereference. The highest threat from this vulnerability is to system
availability.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchopenexr< 2.2.0-11.1ubuntu1.7UNKNOWN
ubuntu20.04noarchopenexr< 2.3.0-6ubuntu0.5+esm1UNKNOWN
ubuntu16.04noarchopenexr< 2.2.0-10ubuntu2.6+esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	openexr	< 2.2.0-11.1ubuntu1.7	UNKNOWN
ubuntu	20.04	noarch	openexr	< 2.3.0-6ubuntu0.5+esm1	UNKNOWN
ubuntu	16.04	noarch	openexr	< 2.2.0-10ubuntu2.6+esm1	UNKNOWN