CVE-2019-10097

Publication date 14 August 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In Apache HTTP Server 2.4.32-2.4.39, when mod_remoteip was configured to use a trusted intermediary proxy server using the "PROXY" protocol, a specially crafted PROXY header could trigger a stack buffer overflow or NULL pointer deference. This vulnerability could only be triggered by a trusted proxy and not by untrusted HTTP clients.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apache2	19.04 disco	Fixed 2.4.38-2ubuntu2.2
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

sbeattie

apache 2.4.33 through 2.4.42 (pending)

Patch details

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

Package	Patch details
apache2	Upstream: 6e2cd6b

Severity score breakdown

Parameter	Value
Base score	7.2 · High
Attack vector	Network
Attack complexity	Low
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-4113-1
Apache HTTP Server vulnerabilities
29 August 2019