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Vulnerability Details :

CVE-2023-31146

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-11 May, 2023 | 20:51
Updated At-24 Jan, 2025 | 16:02
Rejected At-
Credits

Vyper vulnerable to OOB DynArray access when array is on both LHS and RHS of an assignment

Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, during codegen, the length word of a dynarray is written before the data, which can result in out-of-bounds array access in the case where the dynarray is on both the lhs and rhs of an assignment. The issue can cause data corruption across call frames. The expected behavior is to revert due to out-of-bounds array access. Version 0.3.8 contains a patch for this issue.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:11 May, 2023 | 20:51
Updated At:24 Jan, 2025 | 16:02
Rejected At:
▼CVE Numbering Authority (CNA)
Vyper vulnerable to OOB DynArray access when array is on both LHS and RHS of an assignment

Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, during codegen, the length word of a dynarray is written before the data, which can result in out-of-bounds array access in the case where the dynarray is on both the lhs and rhs of an assignment. The issue can cause data corruption across call frames. The expected behavior is to revert due to out-of-bounds array access. Version 0.3.8 contains a patch for this issue.

Affected Products
Vendor
vyperlang
Product
vyper
Versions
Affected
  • < 0.3.8
Problem Types
TypeCWE IDDescription
CWECWE-787CWE-787: Out-of-bounds Write
Type: CWE
CWE ID: CWE-787
Description: CWE-787: Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
x_refsource_CONFIRM
https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
x_refsource_MISC
Hyperlink: https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
x_refsource_CONFIRM
x_transferred
https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
Resource:
x_refsource_MISC
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-787CWE-787 Out-of-bounds Write
Type: CWE
CWE ID: CWE-787
Description: CWE-787 Out-of-bounds Write
Metrics
VersionBase scoreBase severityVector
3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:11 May, 2023 | 21:15
Updated At:24 Jan, 2025 | 16:15

Vyper is a Pythonic smart contract language for the Ethereum virtual machine. Prior to version 0.3.8, during codegen, the length word of a dynarray is written before the data, which can result in out-of-bounds array access in the case where the dynarray is on both the lhs and rhs of an assignment. The issue can cause data corruption across call frames. The expected behavior is to revert due to out-of-bounds array access. Version 0.3.8 contains a patch for this issue.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Primary3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Secondary3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Type: Primary
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CPE Matches
vyperlang
vyperlang
>>vyper>>Versions before 0.3.8(exclusive)
cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-787Primarysecurity-advisories@github.com
CWE-787Primary134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE ID: CWE-787
Type: Primary
Source: security-advisories@github.com
CWE ID: CWE-787
Type: Primary
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edbsecurity-advisories@github.com
Patch
https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wvsecurity-advisories@github.com
Exploit
Vendor Advisory
https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edbaf854a3a-2127-422b-91ae-364da2661108
Patch
https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wvaf854a3a-2127-422b-91ae-364da2661108
Exploit
Vendor Advisory
Hyperlink: https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
Source: security-advisories@github.com
Resource:
Exploit
Vendor Advisory
Hyperlink: https://github.com/vyperlang/vyper/commit/4f8289a81206f767df1900ac48f485d90fc87edb
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Patch
Hyperlink: https://github.com/vyperlang/vyper/security/advisories/GHSA-3p37-3636-q8wv
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Exploit
Vendor Advisory

Change History

0
Information is not available yet

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