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VID 210268
Severity 40
Port 80, ...
Protocol TCP
Class WWW
Detailed Description The version of Apache httpd installed on the remote host is prior to 2.4.58. It is, therefore, affected by vulnerability as referenced in the 2.4.58 advisory.

- When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run out of memory before that. This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During "normal" HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out. Users are recommended to upgrade to version 2.4.58, which fixes the issue. (CVE-2023-45802)

* References:
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2MBEPPC36UBVOZZNAXFHKLFGSLCMN5LI/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BFQD3KUEMFBHPAPBGLWQC34L4OWL5HAZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WE2I52RHNNU42PX6NZ2RBUHSFFJ2LVZX/
https://security.netapp.com/advisory/ntap-20231027-0011/

* Platforms Affected:
Apache HTTP all versions prior to 2.4.58
Any operating system Any version
Recommendation Upgrade to the latest version of Apache HTTP Server (2.4.58 or later), available from the Apache Software Foundation download site, http://httpd.apache.org/download.cgi
Related URL CVE-2023-45802 (CVE)
Related URL (SecurityFocus)
Related URL (ISS)