what you don't know can hurt you

Gentoo Linux Security Advisory 202012-22

Gentoo Linux Security Advisory 202012-22
Posted Dec 24, 2020
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202012-22 - A buffer overflow in HAProxy might allow an attacker to execute arbitrary code. Versions less than 2.1.4 are affected.

tags | advisory, overflow, arbitrary
systems | linux, gentoo
advisories | CVE-2020-11100
MD5 | cc63f4b1c5abcfdc237602d305cf4cd2

Gentoo Linux Security Advisory 202012-22

Change Mirror Download
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 202012-22
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: HAProxy: Arbitrary code execution
Date: December 24, 2020
Bugs: #715944
ID: 202012-22

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A buffer overflow in HAProxy might allow an attacker to execute
arbitrary code.

Background
==========

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

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-proxy/haproxy < 2.1.4 >= 2.0.13:0/2.0
>= 2.1.4

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

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

Impact
======

A remote attacker, by sending a specially crafted HTTP/2 request, could
possibly execute arbitrary code with the privileges of the process, or
cause a Denial of Service condition.

Workaround
==========

Disable HTTP/2 support.

Resolution
==========

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

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/haproxy-2.0.13:0/2.0"

All other HAProxy users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-proxy/haproxy-2.1.4"

References
==========

[ 1 ] CVE-2020-11100
https://nvd.nist.gov/vuln/detail/CVE-2020-11100

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

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

https://security.gentoo.org/glsa/202012-22

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
Login or Register to add favorites

File Archive:

January 2021

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jan 1st
    4 Files
  • 2
    Jan 2nd
    3 Files
  • 3
    Jan 3rd
    3 Files
  • 4
    Jan 4th
    33 Files
  • 5
    Jan 5th
    31 Files
  • 6
    Jan 6th
    21 Files
  • 7
    Jan 7th
    15 Files
  • 8
    Jan 8th
    19 Files
  • 9
    Jan 9th
    1 Files
  • 10
    Jan 10th
    1 Files
  • 11
    Jan 11th
    33 Files
  • 12
    Jan 12th
    19 Files
  • 13
    Jan 13th
    27 Files
  • 14
    Jan 14th
    8 Files
  • 15
    Jan 15th
    16 Files
  • 16
    Jan 16th
    1 Files
  • 17
    Jan 17th
    2 Files
  • 18
    Jan 18th
    20 Files
  • 19
    Jan 19th
    32 Files
  • 20
    Jan 20th
    0 Files
  • 21
    Jan 21st
    0 Files
  • 22
    Jan 22nd
    0 Files
  • 23
    Jan 23rd
    0 Files
  • 24
    Jan 24th
    0 Files
  • 25
    Jan 25th
    0 Files
  • 26
    Jan 26th
    0 Files
  • 27
    Jan 27th
    0 Files
  • 28
    Jan 28th
    0 Files
  • 29
    Jan 29th
    0 Files
  • 30
    Jan 30th
    0 Files
  • 31
    Jan 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close