VDB-172029 · CVE-2021-3476 · GCVE-0-2021-3476

Academy Software Foundation OpenEXR up to 2.x B44 Uncompression integer overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Academy Software Foundation OpenEXR up to 2.x. Affected by this vulnerability is an unknown functionality of the component B44 Uncompression Handler. Performing a manipulation results in integer overflow. This vulnerability is cataloged as CVE-2021-3476. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Academy Software Foundation OpenEXR up to 2.x. This affects an unknown code of the component B44 Uncompression Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.

The weakness was shared 03/31/2021. The advisory is shared at bugs.chromium.org. This vulnerability is uniquely identified as CVE-2021-3476. Neither technical details nor an exploit are publicly available.

Upgrading to version 3.0.0-beta eliminates this vulnerability.

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Productinfo

Vendor

Academy Software Foundation

Name

OpenEXR

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenEXR 3.0.0-beta

Timelineinfo

03/29/2021 🔍
03/31/2021 +2 days 🔍
03/31/2021 +0 days 🔍
04/07/2021 +7 days 🔍

Sourcesinfo

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

CVE: CVE-2021-3476 (🔍)
GCVE (CVE): GCVE-0-2021-3476
GCVE (VulDB): GCVE-100-172029

Entryinfo

Created: 03/31/2021 08:26
Updated: 04/07/2021 11:14
Changes: 03/31/2021 08:26 (38), 04/07/2021 11:12 (5), 04/07/2021 11:14 (18)
Complete: 🔍
Cache ID: 216::103