Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
None
Attack Vector
Network
0

CVE-2021-3737

Disclosure Date: March 04, 2022 •
CVE-2021-3737 CVSS v3 Base Score: 7.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability.

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CVSS V3 Severity and Metrics
Base Score:
7.5 High
Impact Score:
3.6
Exploitability Score:
3.9
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
None
Availability (A):
High

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
python Fixed in python v3.6.14, python v3.7.11, python v3.8.11, python v3.9.6, python v3.10.0b2
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • canonical,
  • fedoraproject,
  • netapp,
  • oracle,
  • python,
  • redhat

Products

  • codeready linux builder 8.0,
  • codeready linux builder for ibm z systems 8.0,
  • codeready linux builder for power little endian 8.0,
  • communications cloud native core binding support function 22.1.3,
  • communications cloud native core network exposure function 22.1.1,
  • communications cloud native core policy 22.2.0,
  • enterprise linux 6.0,
  • enterprise linux 7.0,
  • enterprise linux 8.0,
  • enterprise linux for ibm z systems 8.0,
  • enterprise linux for power little endian 8.0,
  • fedora 33,
  • fedora 34,
  • hci -,
  • management services for element software -,
  • netapp xcp smb -,
  • ontap select deploy administration utility -,
  • python,
  • ubuntu linux 14.04,
  • ubuntu linux 16.04,
  • ubuntu linux 18.04,
  • ubuntu linux 20.04,
  • ubuntu linux 21.04,
  • xcp nfs -
Technical Analysis