Vyper before 0.3.0 Memory Corruption via Internal Function Calls in Arrays
Vyper from 0.1.0b4 before 0.3.0 contains a memory corruption vulnerability caused by an incorrect stack tip pointer when internal function calls are performed inside arrays. Contracts placing internal calls in nested array elements, external call arguments, struct literals, or raw_log topics can have memory corrupted, producing incorrect contract behavior.
CVE-2021-48020
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-2021-48020
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": "0.1.0b4",
"lessThan": "0.3.0",
"versionType": "python"
},
{
"status": "unaffected",
"version": "0.3.0",
"versionType": "python"
}
],
"packageURL": "pkg:pypi/vyper",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2021-48020
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #44930 · Revision 1
- Added to Heist Feed
- Publisher date