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CVE-2023-43622

Public on 2023-10-23
Modified on 2024-02-07
Description

A flaw was found in httpd. This flaw allows an attacker opening an HTTP/2 connection with an initial window size of 0 to block handling of that connection indefinitely in the Apache HTTP Server. This vulnerability can exhaust worker resources in the server, similar to the well-known "slow loris" attack pattern.

Severity
Medium
See what this means
CVSS v3 Base Score
5.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core httpd 2023-10-30 23:59 ALAS2-2023-2322
Amazon Linux 2023 httpd 2023-11-09 21:29 ALAS2023-2023-433
Amazon Linux 1 httpd24 2023-10-30 23:31 ALAS-2023-1877

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H