Vyper before 0.2.9 Incorrect RETURNDATASIZE in create_forwarder_to Proxies
Vyper before 0.2.9 deploys forwarder proxies through the built-in create_forwarder_to function that report a fixed 4096-byte RETURNDATASIZE rather than the actual return data size. Calls through these proxies can yield corrupted data when a function returns more than 4096 bytes without return data sanitation, and fail strict return-size checks such as SafeERC20.safeTransfer.
CVE-2021-48019
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2021-48019
vyper
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "vyperlang",
"product": "vyper",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "0.2.9",
"versionType": "python"
},
{
"status": "unaffected",
"version": "0.2.9",
"versionType": "python"
}
],
"packageURL": "pkg:pypi/vyper",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2021-48019
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #44927 · Revision 1
- Added to Heist Feed
- Publisher date