VDB-153128 · CVE-2020-11764 · USN-4339-1

OpenEXR up to 2.4.0 ImfMisc.cpp copyIntoFrameBuffer out-of-bounds write

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in OpenEXR up to 2.4.0. This affects the function copyIntoFrameBuffer of the file ImfMisc.cpp. Such manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2020-11764. The attack must be carried out locally. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OpenEXR up to 2.4.0. Affected by this issue is the function copyIntoFrameBuffer of the file ImfMisc.cpp. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds write in copyIntoFrameBuffer in ImfMisc.cpp.

The weakness was presented 04/14/2020. This vulnerability is handled as CVE-2020-11764 since 04/14/2020. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 2.4.1 eliminates this vulnerability.

See VDB-153129, VDB-153127, VDB-153126 and VDB-153125 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

OpenEXR

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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 2.4.1

Timelineinfo

04/14/2020 🔍
04/14/2020 +0 days 🔍
04/15/2020 +1 days 🔍
05/09/2025 +1850 days 🔍

Sourcesinfo

Advisory: USN-4339-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-11764 (🔍)
GCVE (CVE): GCVE-0-2020-11764
GCVE (VulDB): GCVE-100-153128
See also: 🔍

Entryinfo

Created: 04/15/2020 08:16
Updated: 05/09/2025 08:01
Changes: 04/15/2020 08:16 (38), 04/15/2020 08:21 (17), 10/09/2020 16:34 (1), 05/19/2024 07:42 (20), 05/09/2025 08:01 (5)
Complete: 🔍
Cache ID: 216::103

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