Vyper extract32 can ready dirty memory
CVE-2024-24564

5.3MEDIUM

Key Information:

Vendor

Vyperlang

Status
Vyper
Vendor
CVE Published:
26 February 2024

What is CVE-2024-24564?

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. When using the built-in extract32(b, start), if the start index provided has for side effect to update b, the byte array to extract 32 bytes from, it could be that some dirty memory is read and returned by extract32. This vulnerability is fixed in 0.4.0.

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Affected Version(s)

vyper < 0.4.0

References

https://github.com/vyperlang/vyper/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/vyperlang/vyper/commit/3d9c537142fb99b...
x_refsource_MISC

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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