Apache HTTP Server up to 2.4.57 HTTP/2 resource consumption

Summaryinfo

A vulnerability was found in Apache HTTP Server up to 2.4.57. It has been rated as critical. The affected element is an unknown function of the component HTTP2 Handler. The manipulation leads to resource consumption. This vulnerability is listed as CVE-2023-43622. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.4.57 (Web Server). It has been rated as critical. This issue affects an unknown function of the component HTTP2 Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was presented 10/19/2023. It is possible to read the advisory at lists.apache.org. The identification of this vulnerability is CVE-2023-43622 since 09/20/2023. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 236824 (CBL Mariner 2.0 Security Update: httpd / mod_http2 (CVE-2023-43622)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.4.58 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (236824) and CERT Bund (WID-SEC-2023-2712). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat JBoss Core Services
• Red Hat Enterprise Linux
• Fedora Linux
• Ubuntu Linux
• SUSE Linux
• IBM Rational ClearCase
• Oracle Linux
• IBM Rational ClearQuest
• IBM Power Hardware Management Console
• Dell NetWorker
• Apache HTTP Server
• IBM HTTP Server
• Xerox FreeFlow Print Server
• Open Source Varnish HTTP Cache
• IBM QRadar SIEM

Productinfo

Type

• Web Server

Vendor

• Apache

Name

• HTTP Server

Version

• 2.4.0
• 2.4.1
• 2.4.2
• 2.4.3
• 2.4.4
• 2.4.5
• 2.4.6
• 2.4.7
• 2.4.8
• 2.4.9
• 2.4.10
• 2.4.11
• 2.4.12
• 2.4.13
• 2.4.14
• 2.4.15
• 2.4.16
• 2.4.17
• 2.4.18
• 2.4.19
• 2.4.20
• 2.4.21
• 2.4.22
• 2.4.23
• 2.4.24
• 2.4.25
• 2.4.26
• 2.4.27
• 2.4.28
• 2.4.29
• 2.4.30
• 2.4.31
• 2.4.32
• 2.4.33
• 2.4.34
• 2.4.35
• 2.4.36
• 2.4.37
• 2.4.38
• 2.4.39
• 2.4.40
• 2.4.41
• 2.4.42
• 2.4.43
• 2.4.44
• 2.4.45
• 2.4.46
• 2.4.47
• 2.4.48
• 2.4.49
• 2.4.50
• 2.4.51
• 2.4.52
• 2.4.53
• 2.4.54
• 2.4.55
• 2.4.56
• 2.4.57

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
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CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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