Vyper up to 0.3.9 _abi_decode calculation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Vyper up to 0.3.9. Impacted is the function _abi_decode. The manipulation results in calculation. This vulnerability is identified as CVE-2023-42460. The attack can be executed remotely. There is not any exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Vyper up to 0.3.9. Affected is the function _abi_decode. The manipulation with an unknown input leads to a calculation vulnerability. CWE is classifying the issue as CWE-682. The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management. This is going to have an impact on integrity. CVE summarizes:

Vyper is a Pythonic Smart Contract Language for the EVM. The `_abi_decode()` function does not validate input when it is nested in an expression. Uses of `_abi_decode()` can be constructed which allow for bounds checking to be bypassed resulting in incorrect results. This issue has not yet been fixed, but a fix is expected in release `0.3.10`. Users are advised to reference pull request #3626.

The weakness was released 09/27/2023 as GHSA-cx2q-hfxr-rj97. The advisory is available at github.com. This vulnerability is traded as CVE-2023-42460 since 09/08/2023. Technical details are known, but there is no available exploit.

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

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.3
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: Calculation
CWE: CWE-682
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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

09/08/2023 🔍
09/27/2023 +19 days 🔍
09/27/2023 +0 days 🔍
10/16/2023 +19 days 🔍

Sourcesinfo

Advisory: GHSA-cx2q-hfxr-rj97
Status: Confirmed

CVE: CVE-2023-42460 (🔍)
GCVE (CVE): GCVE-0-2023-42460
GCVE (VulDB): GCVE-100-240366

Entryinfo

Created: 09/27/2023 17:45
Updated: 10/16/2023 12:43
Changes: 09/27/2023 17:45 (49), 10/16/2023 12:43 (11)
Complete: 🔍
Cache ID: 216::103

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