CVE-2022-23943

Publication date 14 March 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provided data. This issue affects Apache HTTP Server 2.4 version 2.4.52 and prior versions.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apache2	22.04 LTS jammy	Fixed 2.4.52-1ubuntu2
	21.10 impish	Fixed 2.4.48-3.1ubuntu3.3
	20.04 LTS focal	Fixed 2.4.41-4ubuntu3.10
	18.04 LTS bionic	Fixed 2.4.29-1ubuntu4.22
	16.04 LTS xenial	Fixed 2.4.18-2ubuntu3.17+esm5
	14.04 LTS trusty	Fixed 2.4.7-1ubuntu4.22+esm4

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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: 943f57b Upstream: e266bd0 Upstream: https://svn.apache.org/viewvc?view=revision&revision=1898695 Upstream: https://svn.apache.org/viewvc?view=revision&revision=1898772

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H