Description (CNA)
virtualenv is a tool for creating isolated virtual python environments. Prior to 21.7.12, download_wheel() accepts pip and setuptools seed wheels fetched for periodic updates or the --download option without checking their bytes against an authoritative digest equivalent to the embedded wheels' BUNDLE_SHA256 verification. A compromised index, stale mirror, or intercepted TLS connection can substitute a different wheel under the requested distribution, version, and filename, after which virtualenv caches and seeds the attacker-controlled wheel into subsequently created environments. The verification applies to the default PyPI path and is intentionally skipped when PIP_INDEX_URL, PIP_EXTRA_INDEX_URL, or PIP_INDEX configures a custom index that may legitimately publish rebuilt wheels. This issue is fixed in version 21.7.12.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| pypa / virtualenv | affected < 21.7.12 |
CWE
CWE-494
References
- https://github.com/pypa/virtualenv/security/advisories/GHSA-94p9-xgh2-xp45
- https://github.com/pypa/virtualenv/pull/3251
- https://github.com/pypa/virtualenv/commit/a01ed3e2f239d6ab1fce62c5c7664ccf268fff6d
ADP enrichment
No English description supplied.
No references supplied.