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.
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Affected Vendors & Products
References
History
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MITRE
Status: PUBLISHED
Assigner: apache
Published: 2023-10-23T06:50:23.991Z
Updated: 2024-09-12T18:04:36.899Z
Reserved: 2023-10-13T09:44:15.791Z
Link: CVE-2023-45802
Vulnrichment
Updated: 2024-08-02T20:29:32.370Z
NVD
Status : Modified
Published: 2023-10-23T07:15:11.330
Modified: 2024-06-10T17:16:14.907
Link: CVE-2023-45802
Redhat