VDB-207054 · CVE-2021-20298 · GCVE-0-2021-20298

OpenEXR B44 Compressor resource consumption

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in OpenEXR. Affected by this issue is some unknown functionality of the component B44 Compressor. The manipulation results in resource consumption. This vulnerability is cataloged as CVE-2021-20298. There is no exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability classified as problematic has been found in OpenEXR (affected version unknown). Affected is an unknown functionality of the component B44 Compressor. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. CVE summarizes:

A flaw was found in OpenEXR's B44Compressor. This flaw allows an attacker who can submit a crafted file to be processed by OpenEXR, to exhaust all memory accessible to the application. The highest threat from this vulnerability is to system availability.

The weakness was shared 08/24/2022. The advisory is available at bugs.chromium.org. This vulnerability is traded as CVE-2021-20298 since 12/17/2020. The technical details are unknown and an exploit is not available.

Applying the patch 85fd638ae0d5fa132434f4cbf32590261c1dba97 is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Name

OpenEXR

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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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: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 85fd638ae0d5fa132434f4cbf32590261c1dba97

Timelineinfo

12/17/2020 🔍
08/24/2022 +614 days 🔍
08/24/2022 +0 days 🔍
09/25/2022 +32 days 🔍

Sourcesinfo

Advisory: 85fd638ae0d5fa132434f4cbf32590261c1dba97
Status: Confirmed

CVE: CVE-2021-20298 (🔍)
GCVE (CVE): GCVE-0-2021-20298
GCVE (VulDB): GCVE-100-207054

Entryinfo

Created: 08/24/2022 09:03
Updated: 09/25/2022 08:55
Changes: 08/24/2022 09:03 (39), 09/25/2022 08:53 (1), 09/25/2022 08:55 (11)
Complete: 🔍
Cache ID: 216::103