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Amazon Linux AMI: CVE-2021-3733: Security patch for python27 (ALAS-2022-1593)

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Amazon Linux AMI: CVE-2021-3733: Security patch for python27 (ALAS-2022-1593)

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
09/16/2021
Created
06/14/2022
Added
06/10/2022
Modified
06/10/2022

Description

There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability.

Solution(s)

  • amazon-linux-upgrade-python27

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