CVE-2022-24788: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

April 13, 2022 (updated August 2, 2023)

Vyper is a pythonic Smart Contract Language for the ethereum virtual machine. Versions of vyper prior to 0.3.2 suffer from a potential buffer overrun. Importing a function from a JSON interface which returns bytes generates bytecode which does not clamp bytes length, potentially resulting in a buffer overrun. Users are advised to upgrade. There are no known workarounds for this issue.

References

github.com/advisories/GHSA-4mrx-6fxm-8jpg
github.com/vyperlang/vyper/commit/049dbdc647b2ce838fae7c188e6bb09cf16e470b
github.com/vyperlang/vyper/security/advisories/GHSA-4mrx-6fxm-8jpg
nvd.nist.gov/vuln/detail/CVE-2022-24788

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