what you don't know can hurt you

Ubuntu Security Notice USN-1259-1

Ubuntu Security Notice USN-1259-1
Posted Nov 11, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1259-1 - It was discovered that the mod_proxy module in Apache did not properly interact with the RewriteRule and ProxyPassMatch pattern matches in the configuration of a reverse proxy. This could allow remote attackers to contact internal webservers behind the proxy that were not intended for external exposure. Stefano Nichele discovered that the mod_proxy_ajp module in Apache when used with mod_proxy_balancer in certain configurations could allow remote attackers to cause a denial of service via a malformed HTTP request. Various other issues were also addressed.

tags | advisory, remote, web, denial of service
systems | linux, ubuntu
advisories | CVE-2011-1176, CVE-2011-3348, CVE-2011-3368
MD5 | e9eb4cdce21f76bca01980910f3b1b4f

Ubuntu Security Notice USN-1259-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-1259-1
November 11, 2011

apache2, apache2-mpm-itk vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Multiple vulnerabilities and a regression were fixed in the Apache HTTP
server.

Software Description:
- apache2: Apache HTTP server
- apache2-mpm-itk: multiuser MPM for Apache 2.2

Details:

It was discovered that the mod_proxy module in Apache did not properly
interact with the RewriteRule and ProxyPassMatch pattern matches
in the configuration of a reverse proxy. This could allow remote
attackers to contact internal webservers behind the proxy that were
not intended for external exposure. (CVE-2011-3368)

Stefano Nichele discovered that the mod_proxy_ajp module in Apache when
used with mod_proxy_balancer in certain configurations could allow
remote attackers to cause a denial of service via a malformed HTTP
request. (CVE-2011-3348)

Samuel Montosa discovered that the ITK Multi-Processing Module for
Apache did not properly handle certain configuration sections that
specify NiceValue but not AssignUserID, preventing Apache from dropping
privileges correctly. This issue only affected Ubuntu 10.04 LTS, Ubuntu
10.10 and Ubuntu 11.04. (CVE-2011-1176)

USN 1199-1 fixed a vulnerability in the byterange filter of Apache. The
upstream patch introduced a regression in Apache when handling specific
byte range requests. This update fixes the issue.

Original advisory details:

A flaw was discovered in the byterange filter in Apache. A remote attacker
could exploit this to cause a denial of service via resource exhaustion.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.10:
apache2.2-bin 2.2.20-1ubuntu1.1

Ubuntu 11.04:
apache2-mpm-itk 2.2.17-1ubuntu1.4
apache2.2-bin 2.2.17-1ubuntu1.4

Ubuntu 10.10:
apache2-mpm-itk 2.2.16-1ubuntu3.4
apache2.2-bin 2.2.16-1ubuntu3.4

Ubuntu 10.04 LTS:
apache2-mpm-itk 2.2.14-5ubuntu8.7
apache2.2-bin 2.2.14-5ubuntu8.7

Ubuntu 8.04 LTS:
apache2.2-common 2.2.8-1ubuntu0.22

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1259-1
CVE-2011-1176, CVE-2011-3348, CVE-2011-3368

Package Information:
https://launchpad.net/ubuntu/+source/apache2/2.2.20-1ubuntu1.1
https://launchpad.net/ubuntu/+source/apache2/2.2.17-1ubuntu1.4
https://launchpad.net/ubuntu/+source/apache2/2.2.16-1ubuntu3.4
https://launchpad.net/ubuntu/+source/apache2/2.2.14-5ubuntu8.7
https://launchpad.net/ubuntu/+source/apache2/2.2.8-1ubuntu0.22
https://launchpad.net/ubuntu/+source/apache2-mpm-itk/2.2.6-01-1build3.14

Login or Register to add favorites

File Archive:

October 2021

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