Apache HTTP Server up to 2.4.52 Request Body integer overflow

Summaryinfo

A vulnerability categorized as critical has been discovered in Apache HTTP Server up to 2.4.52. The affected element is an unknown function of the component Request Body Handler. Executing a manipulation can lead to integer overflow. This vulnerability is registered as CVE-2022-22721. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Apache HTTP Server up to 2.4.52 (Web Server). This vulnerability affects an unknown functionality of the component Request Body Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. The CWE definition for the vulnerability is CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 03/14/2022. The advisory is shared for download at httpd.apache.org. This vulnerability was named CVE-2022-22721 since 01/06/2022. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 08/11/2025).

The vulnerability scanner Nessus provides a plugin with the ID 247826 (TencentOS Server 2: httpd (TSSA-2025:0526)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.4.53 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (247826). Once again VulDB remains the best source for vulnerability data.

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

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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