CVE-2019-10082

Publication date 14 August 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In Apache HTTP Server 2.4.18-2.4.39, using fuzzed network input, the http/2 session handling could be made to read memory after being freed, during connection shutdown.

Read the notes from the security team

Mitigation

Unpatched servers can disable the h2/h2c protocol.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apache2	19.04 disco	Fixed 2.4.38-2ubuntu2.2
	18.04 LTS bionic	Fixed 2.4.29-1ubuntu4.10
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

sbeattie

apache2 2.4.18 to 2.4.39 apache 2.4.18 in xenial does not build mod_http2

Severity score breakdown

Parameter	Value
Base score	9.1 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References

Related Ubuntu Security Notices (USN)

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