CVE-2024-42516

Publication date 10 July 2025

Last updated 20 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response. This vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue. Users are recommended to upgrade to version 2.4.64, which fixes this issue.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apache2	25.10 questing	Fixed 2.4.64-1ubuntu2
	25.04 plucky	Fixed 2.4.63-1ubuntu1.1
	24.04 LTS noble	Fixed 2.4.58-1ubuntu8.7
	22.04 LTS jammy	Fixed 2.4.52-1ubuntu4.15
	20.04 LTS focal	Fixed 2.4.41-4ubuntu3.23+esm2
	18.04 LTS bionic	Fixed 2.4.29-1ubuntu4.27+esm6
	16.04 LTS xenial	Fixed 2.4.18-2ubuntu3.17+esm16
	14.04 LTS trusty	Needs evaluation

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
apache2	Upstream: a7a9d81

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N