DEBIAN-CVE-2021-3733
- Source
- https://security-tracker.debian.org/tracker/CVE-2021-3733
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3733.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-3733
- Upstream
- Downstream
- Published
- 2022-03-10T17:42:59Z
- Modified
- 2026-09-01T20:04:31Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.
- References
Affected packages
Debian:12 / pypy3
Package
- Name
- pypy3
- Purl
- pkg:deb/debian/pypy3?arch=source&distro=bookworm
Debian:13 / pypy3
Package
- Name
- pypy3
- Purl
- pkg:deb/debian/pypy3?arch=source&distro=trixie
Debian:14 / pypy3
Package
- Name
- pypy3
- Purl
- pkg:deb/debian/pypy3?arch=source&distro=forky