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ApacheVULNRICHMENT:CVE-2023-43622HistoryOct 23, 2023 - 6:50 a.m.
CVE-2023-43622 Apache HTTP Server: DoS in HTTP/2 with initial windows size 0
2023-10-2306:50:51
CWE-400
apache
github.com
1
cve-2023-43622; apache http server; dos attack; http/2; initial window size 0; connection timeout; version 2.4.58; server resource exhaustion; slow loris attack; upgrade recommended
An attacker, opening a HTTP/2 connection with an initial window size of 0, was able to block handling of that connection indefinitely in Apache HTTP Server. This could be used to exhaust worker resources in the server, similar to the well known “slow loris” attack pattern.
This has been fixed in version 2.4.58, so that such connection are terminated properly after the configured connection timeout.
This issue affects Apache HTTP Server: from 2.4.55 through 2.4.57.
Users are recommended to upgrade to version 2.4.58, which fixes the issue.
Related
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CVE-2023-43622 Apache HTTP Server: DoS in HTTP/2 with initial windows size 0
2023-10-23 06:50:51
osv
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BIT-2023-43622
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CVE-2023-43622 affecting package httpd for versions less than 2.4.58-1
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ubuntucve
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cve
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2023-10-23 07:15:11
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2024-05-02 00:00:00
redhat
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AI Score
6.6
Confidence
Low
SSVC
Exploitation
poc
Automatable
yes
Technical Impact
partial
Related for VULNRICHMENT:CVE-2023-43622