evm up to 0.26.0 EVM Opcode Execution copy_large allocation of resources

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in evm up to 0.21.0/0.23.0/0.24.0/0.25.0/0.26.0. Affected is the function evm_core::Memory::copy_large of the component EVM Opcode Execution. Such manipulation leads to allocation of resources. This vulnerability is listed as CVE-2021-29511. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in evm up to 0.21.0/0.23.0/0.24.0/0.25.0/0.26.0. Affected by this issue is the function evm_core::Memory::copy_large of the component EVM Opcode Execution. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability.

The weakness was presented 05/13/2021. The advisory is available at github.com. This vulnerability is handled as CVE-2021-29511. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

Upgrading to version 0.21.1, 0.23.1, 0.24.1, 0.25.1 or 0.26.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / 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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: evm 0.21.1/0.23.1/0.24.1/0.25.1/0.26.1
Patch: github.com

Timelineinfo

03/30/2021 🔍
05/13/2021 +44 days 🔍
05/13/2021 +0 days 🔍
05/15/2021 +2 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-29511 (🔍)
GCVE (CVE): GCVE-0-2021-29511
GCVE (VulDB): GCVE-100-174998

Entryinfo

Created: 05/13/2021 06:48
Updated: 05/15/2021 18:32
Changes: 05/13/2021 06:48 (39), 05/15/2021 18:24 (6), 05/15/2021 18:32 (1)
Complete: 🔍
Cache ID: 216::103

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