Apache HTTP Server up to 2.4.53 ap_strcmp_match integer overflow

Summaryinfo

A vulnerability marked as critical has been reported in Apache HTTP Server up to 2.4.53. The impacted element is the function ap_strcmp_match. The manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2022-28615. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache HTTP Server up to 2.4.53 (Web Server). It has been rated as critical. This issue affects the function ap_strcmp_match. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 06/09/2022. It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2022-28615 since 04/04/2022. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (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 2.4.54 eliminates this vulnerability. The upgrade is hosted for download at httpd.apache.org.

The vulnerability is also documented in the vulnerability database at Tenable (247826). Be aware that VulDB is the high quality 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
• 2.4.53

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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