Ubuntu.comUB:CVE-2021-21240CVE-2021-21240
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.004 Low
EPSS
Percentile
72.1%
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | patch will introduce dependency on the pyparsing package |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | python-httplib2 | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | python-httplib2 | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | python-httplib2 | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | python-httplib2 | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | python-httplib2 | < any | UNKNOWN |
References
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.004 Low
EPSS
Percentile
72.1%