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CVE-2021-21240

nvd nist
Published: Feb 8, 2021Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

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.

Affected (1)

Httplib2 Project
1 product
Httplib2
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Httplib2
Before 0.19.0

Related CWEs

CWE-400
Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References (8)

Source: security-advisories@github.com
PatchThird Party Advisory
Source: security-advisories@github.com
PatchThird Party Advisory
Source: security-advisories@github.com
ExploitMitigationThird Party Advisory
Source: security-advisories@github.com
ProductThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitMitigationThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ProductThird Party Advisory

Timeline

No history available yet.