PT-2022-6750 · Python+12 · Python+12
Guidovranken
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Published
2022-09-09
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Updated
2026-05-18
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CVE-2022-45061
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Python versions prior to 3.11.1
Python versions prior to 3.10.9
Python versions prior to 3.9.16
Python versions prior to 3.8.16
Python versions prior to 3.7.16
Description
An issue exists in the IDNA (RFC 3490) decoder, where an unnecessary quadratic algorithm can lead to a CPU denial of service when processing crafted, unreasonably long names. This could be triggered by a malicious actor supplying a hostname that causes excessive CPU consumption on the client. For example, the attack payload could be placed in the
Location header of an HTTP response with status code 302.Recommendations
For versions prior to 3.11.1, update to version 3.11.1 or later.
For versions prior to 3.10.9, update to version 3.10.9 or later.
For versions prior to 3.9.16, update to version 3.9.16 or later.
For versions prior to 3.8.16, update to version 3.8.16 or later.
For versions prior to 3.7.16, update to version 3.7.16 or later.
Exploit
Fix
DoS
Resource Exhaustion
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Debian
Ibm Aix
Linuxmint
Python
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu