PT-2020-5892 · Openexr+5 · Openexr+5

Michael Kaplan · CVE-2021-3474 · Published 2020-08-17 · Updated 2023-10-17

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: The issue is related to a flaw in the FastHufDecoder function of the OpenEXR library, which can cause a shift overflow when processing crafted input files. This could potentially lead to problems with application availability, such as a denial of service. The vulnerability can be exploited by a remote attacker by opening specially crafted EXR files.

Recommendations: For OpenEXR 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 FastHufDecoder function until a patch is available. Avoid processing untrusted input files with OpenEXR to minimize the risk of exploitation.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

ALT-PU-2021-1863

ALT-PU-2021-1864

ALT-PU-2021-1933

ALT-PU-2021-1934

AZL-44640

BDU:2021-01984

CVE-2021-3474

DLA-2701-1

DLA-3236-1

MGASA-2021-0326

OESA-2021-1167

OPENSUSE-SU-2021:0536-1

OPENSUSE-SU-2021_0536-1

ROSA-SA-2023-2247

SUSE-SU-2021:1097-1

SUSE-SU-2021_1097-1

USN-4900-1

Affected Products

Alt Linux

Astra Linux

Linuxmint

Openexr

Suse

Ubuntu

References · 58

• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2023-0316SE47MD · Vendor Advisory
• https://osv.dev/vulnerability/DLA-3236-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4900-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-3474 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2021-0326.html · Security Note
• https://ubuntu.com/security/CVE-2021-3476 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2701-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2023-0303SE17MD · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3477 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4996-1 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1939142 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-3476 · Security Note
• https://ubuntu.com/security/CVE-2021-3475 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3478 · Vendor Advisory
• https://osv.dev/vulnerability/AZL-44640 · Vendor Advisory