CVE-2024-22419: concat built-in can corrupt memory in vyper
(updated )
concat
built-in can write over the bounds of the memory buffer that was allocated for it and thus overwrite existing valid data. The root cause is that the build_IR
for concat
doesn’t properly adhere to the API of copy functions (for >=0.3.2
the copy_bytes
function).
A contract search was performed and no vulnerable contracts were found in production.
Tracked in issue https://github.com/vyperlang/vyper/issues/3737
References
- github.com/advisories/GHSA-2q8v-3gqq-4f8p
- github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2024-103.yaml
- github.com/vyperlang/vyper
- github.com/vyperlang/vyper/commit/55e18f6d128b2da8986adbbcccf1cd59a4b9ad6f
- github.com/vyperlang/vyper/issues/3737
- github.com/vyperlang/vyper/security/advisories/GHSA-2q8v-3gqq-4f8p
- nvd.nist.gov/vuln/detail/CVE-2024-22419
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