Description
The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related toΒ CVE-2021-4189.
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| libpython | β | β |
| python | β | β |
| python-min | β | β |
| unknown | β | β |
Similar Threats
- High BIT-libpython-2026-4519
- Low BIT-libpython-2026-3479
- Medium BIT-libpython-2026-3644
- Low BIT-libpython-2025-13462
- Medium BIT-libpython-2026-2297
Free Vulnerability Check
Is your WordPress site affected?
BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against known CVE records.
Scan My Site Free βNo credit card required Β· Results in minutes
ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.