OpenEXR File ImfHuf.cpp hufUncompress integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in OpenEXR. It has been declared as critical. This issue affects the function hufUncompress of the file OpenEXR/IlmImf/ImfHuf.cpp of the component File Handler. Executing a manipulation can lead to integer overflow. This vulnerability is tracked as CVE-2021-20300. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability has been found in OpenEXR (version now known) and classified as critical. This vulnerability affects the function hufUncompress of the file OpenEXR/IlmImf/ImfHuf.cpp of the component File Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 03/05/2022. The advisory is available at bugs.chromium.org. This vulnerability was named CVE-2021-20300 since 12/17/2020. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 253205 (Linux Distros Unpatched Vulnerability : CVE-2021-20300), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (253205). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 253205
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2021-20300

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

12/17/2020 🔍
03/05/2022 +443 days 🔍
03/05/2022 +0 days 🔍
08/24/2025 +1268 days 🔍

Sourcesinfo

Advisory: bugs.chromium.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-20300 (🔍)
GCVE (CVE): GCVE-0-2021-20300
GCVE (VulDB): GCVE-100-194242

Entryinfo

Created: 03/05/2022 04:42
Updated: 08/24/2025 23:24
Changes: 03/05/2022 04:42 (40), 03/09/2022 09:07 (1), 03/09/2022 09:09 (1), 08/24/2025 23:24 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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