VDB
DEBIAN-CVE-2021-21240
DEBIAN-CVE-2021-21240
PUBLISHED
CVSS 7.5 HIGH
httplib2 is a comprehensive HTTP client library for Python. In httplib2 before version 0.19.0, a malicious server which responds with long series of "\xa0" characters in the "www-authenticate" header may cause Denial of Service (CPU burn while parsing header) of the httplib2 client accessing said server. This is fixed in version 0.19.0 which contains a new implementation of auth headers parsing using the pyparsing library.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | python-httplib2 | 0, 0, 0 |
| Debian:12 | python-httplib2 | 0, 0, 0 |
| Debian:11 | python-httplib2 | 0.20.4-2, 0.20.4-3, 0.22.0-1 |
| Debian:13 | python-httplib2 | 0, 0, 0 |
Timeline
- Feb 8, 2021 CVE Published
- Apr 28, 2026 CVE Updated