CVE-2024-32646

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-32646
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-32646.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-32646
Aliases
Published
2024-04-25T17:21:59Z
Modified
2025-10-20T20:26:14.520889Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
vyper performs double eval of the slice args when buffer from adhoc locations
Details

Vyper is a pythonic Smart Contract Language for the Ethereum virtual machine. In versions 0.3.10 and prior, using the slice builtin can result in a double eval vulnerability when the buffer argument is either msg.data, self.code or <address>.code and either the start or length arguments have side-effects. It can be easily triggered only with the versions &lt;0.3.4 as 0.3.4 introduced the unique symbol fence. No vulnerable production contracts were found. Additionally, double evaluation of side-effects should be easily discoverable in client tests. As such, the impact is low. As of time of publication, no fixed versions are available.

Database specific 
{
    "cwe_ids": [
        "CWE-20"
    ]
}
References

Affected packages

Git / github.com/vyperlang/vyper

Affected ranges

Type
GIT
Repo
https://github.com/vyperlang/vyper
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
e9db8d9f7486eae38f5b86531629019ad28f514e

Affected versions

0.*

0.2.1

Other

pre-release

v0.*

v0.0.4
v0.1.0-beta.1
v0.1.0-beta.10
v0.1.0-beta.11
v0.1.0-beta.12
v0.1.0-beta.13
v0.1.0-beta.14
v0.1.0-beta.15
v0.1.0-beta.16
v0.1.0-beta.17
v0.1.0-beta.2
v0.1.0-beta.3
v0.1.0-beta.4
v0.1.0-beta.5
v0.1.0-beta.6
v0.1.0-beta.7
v0.1.0-beta.8
v0.1.0-beta.9
v0.2.0
v0.2.1
v0.2.10
v0.2.11
v0.2.12
v0.2.13
v0.2.14
v0.2.15
v0.2.16
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.3.0
v0.3.1
v0.3.10
v0.3.10rc1
v0.3.10rc2
v0.3.10rc3
v0.3.10rc4
v0.3.10rc5
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.4.0b1
v0.4.0b2
v0.4.0b3
v0.4.0b4
v0.4.0b5
v0.4.0b6
v0.4.0rc1
v0.4.0rc2
v0.4.0rc3
v0.4.0rc4
v0.4.0rc5
v0.4.0rc6