Amazon Linux AMI 2: CVE-2021-33503: Security patch for python-urllib3 (ALAS-2021-1688)
5
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
06/29/2021
07/20/2021
07/19/2021
09/30/2022
Description
An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
Solution(s)
- amazon-linux-ami-2-upgrade-python-urllib3
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