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Gentoo Linux Security Advisory GLSA 202004-01
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https://security.gentoo.org/
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Severity: High
Title: HAProxy: Remote execution of arbitrary code
Date: April 01, 2020
Bugs: #701842
ID: 202004-01

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Synopsis
========

A vulnerability in HAProxy might lead to remote execution of arbitrary
code.

Background
==========

HAProxy is a TCP/HTTP reverse proxy for high availability environments.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-proxy/haproxy < 2.0.10 *>= 1.8.23
*>= 1.9.13
*>= 2.0.10

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

It was discovered that HAProxy incorrectly handled certain HTTP/2
headers.

Impact
======

A remote attacker could send a specially crafted HTTP/2 header,
possibly resulting in execution of arbitrary code with the privileges
of the process or a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All HAProxy 1.8.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/haproxy-1.8.23"

All HAProxy 1.9.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/haproxy-1.9.13"

All HAProxy 2.0.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/haproxy-2.0.10"

References
==========

[ 1 ] CVE-2019-19330
https://nvd.nist.gov/vuln/detail/CVE-2019-19330

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202004-01

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2020 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5