Vyper up to 0.3.10 _abi_decode memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Vyper up to 0.3.10. It has been rated as critical. This vulnerability affects the function _abi_decode. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2024-26149. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Vyper up to 0.3.10. It has been rated as critical. This issue affects the function _abi_decode. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality. The summary by CVE is:

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. If an excessively large value is specified as the starting index for an array in `_abi_decode`, it can cause the read position to overflow. This results in the decoding of values outside the intended array bounds, potentially leading to exploitations in contracts that use arrays within `_abi_decode`. This vulnerability affects 0.3.10 and earlier versions.

The weakness was disclosed 02/26/2024 as GHSA-9p8r-4xp4-gw5w. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2024-26149 since 02/14/2024. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/17/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

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

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 3.7
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/14/2024 🔍
02/26/2024 +12 days 🔍
02/26/2024 +0 days 🔍
01/17/2025 +326 days 🔍

Sourcesinfo

Advisory: GHSA-9p8r-4xp4-gw5w
Status: Confirmed

CVE: CVE-2024-26149 (🔍)
GCVE (CVE): GCVE-0-2024-26149
GCVE (VulDB): GCVE-100-254807

Entryinfo

Created: 02/26/2024 21:26
Updated: 01/17/2025 04:00
Changes: 02/26/2024 21:26 (48), 01/17/2025 04:00 (27)
Complete: 🔍
Cache ID: 216::103

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