Subject: [ASA-202004-7] haproxy: arbitrary code execution

Arch Linux Security Advisory ASA-202004-7
=========================================

Severity: Critical
Date    : 2020-04-08
CVE-ID  : CVE-2020-11100
Package : haproxy
Type    : arbitrary code execution
Remote  : Yes
Link    : https://security.archlinux.org/AVG-1124

Summary
=======

The package haproxy before version 2.1.4-1 is vulnerable to arbitrary
code execution.

Resolution
==========

Upgrade to 2.1.4-1.

# pacman -Syu "haproxy>=2.1.4-1"

The problem has been fixed upstream in version 2.1.4.

Workaround
==========

None.

Description
===========

An out-of-bounds memory write has been found in HAProxy before 2.1.4,
in the HPACK table management code.

Impact
======

A remote attacker might be able to execute code via a crafted HTTP/2
request.

References
==========

https://git.haproxy.org/?p=haproxy-2.1.git;a=commitdiff;h=f17f86304f187b0f10ca6a8d46346afd9851a543;hp=dd6f0b1a74fb1241d276484f3c4aced513a95b78
https://security.archlinux.org/CVE-2020-11100