VDB-157272 · CVE-2020-15306 · GCVE-0-2020-15306

OpenEXR up to 2.5.1 IlmImf/ImfMisc.cpp getChunkOffsetTableSize chunkCount 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.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in OpenEXR up to 2.5.1. Impacted is the function getChunkOffsetTableSize of the file IlmImf/ImfMisc.cpp. The manipulation of the argument chunkCount results in out-of-bounds write. This vulnerability is reported as CVE-2020-15306. The attack requires a local approach. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in OpenEXR up to 2.5.1. It has been classified as critical. Affected is the function getChunkOffsetTableSize of the file IlmImf/ImfMisc.cpp. The manipulation of the argument chunkCount with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in OpenEXR before v2.5.2. Invalid chunkCount attributes could cause a heap buffer overflow in getChunkOffsetTableSize() in IlmImf/ImfMisc.cpp.

The weakness was disclosed 06/26/2020. This vulnerability is traded as CVE-2020-15306 since 06/26/2020. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 2.5.2 eliminates this vulnerability.

The entries VDB-157271 and VDB-157270 are pretty similar. 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: No

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 2.5.2

Timelineinfo

06/26/2020 🔍
06/26/2020 +0 days 🔍
06/26/2020 +0 days 🔍
06/26/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-15306 (🔍)
GCVE (CVE): GCVE-0-2020-15306
GCVE (VulDB): GCVE-100-157272
See also: 🔍

Entryinfo

Created: 06/26/2020 12:38
Updated: 06/26/2020 12:43
Changes: 06/26/2020 12:38 (39), 06/26/2020 12:43 (17)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.