DEBIAN-CVE-2021-21240

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Source
https://security-tracker.debian.org/tracker/CVE-2021-21240
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-21240.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-21240
Upstream
Published
2021-02-08T20:15:12Z
Modified
2025-09-30T05:14:44.676309Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / python-httplib2

Package

Name
python-httplib2
Purl
pkg:deb/debian/python-httplib2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.18.1-3
0.20.2-1
0.20.2-2
0.20.2-3
0.20.4-1
0.20.4-2
0.20.4-3
0.22.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / python-httplib2

Package

Name
python-httplib2
Purl
pkg:deb/debian/python-httplib2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.20.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / python-httplib2

Package

Name
python-httplib2
Purl
pkg:deb/debian/python-httplib2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.20.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / python-httplib2

Package

Name
python-httplib2
Purl
pkg:deb/debian/python-httplib2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.20.2-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}