PT-2020-6481 · Openexr+5 · Openexr+5

Michael Kaplan · Published 2020-08-13 · Updated 2022-12-13 · CVE-2021-20296

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenEXR versions prior to 3.0.0-beta

Description A flaw in the Dwa decompression functionality of OpenEXR's IlmImf library can cause a NULL pointer dereference when processing a crafted input file supplied by an attacker. This could lead to a system availability threat. The vulnerability can be exploited by a remote attacker to cause a denial of service.

Recommendations For versions prior to 3.0.0-beta, update to version 3.0.0-beta or later to resolve the issue. As a temporary workaround, consider restricting the use of the Dwa decompression functionality in the IlmImf library until a patch is available. Avoid processing untrusted input files with the affected library to minimize the risk of exploitation.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2021-1863

ALT-PU-2021-1864

ALT-PU-2021-1933

ALT-PU-2021-1934

ALT-PU-2021-3360

AZL-44505

BDU:2021-05210

CVE-2021-20296

DLA-2701-1

DLA-3236-1

MGASA-2021-0326

OESA-2021-1167

OPENSUSE-SU-2021:0670-1

OPENSUSE-SU-2021_0670-1

SUSE-SU-2021:1489-1

SUSE-SU-2021_1489-1

USN-4996-1

USN-4996-2

USN-5620-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Openexr

Suse

Ubuntu

References · 66

• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2023-0316SE47MD · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20296 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3236-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4900-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0326.html · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-20296 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3933 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1939141 · Patch
• https://osv.dev/vulnerability/DLA-2701-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0303SE17MD · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05210 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2021:0670-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4996-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4996-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3598 · Vendor Advisory