exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Ubuntu Security Notice USN-3177-2

Ubuntu Security Notice USN-3177-2
Posted Feb 3, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3177-2 - USN-3177-1 fixed vulnerabilities in Tomcat. The update introduced a regression in environments where Tomcat is started with a security manager. This update fixes the problem. It was discovered that the Tomcat realm implementations incorrectly handled passwords when a username didn't exist. A remote attacker could possibly use this issue to enumerate usernames. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly limited use of a certain utility method. A malicious application could possibly use this to bypass Security Manager restrictions. Various other issues were also addressed.

tags | advisory, remote, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-0762, CVE-2016-5018, CVE-2016-5388, CVE-2016-6794, CVE-2016-6796, CVE-2016-6797, CVE-2016-6816, CVE-2016-8735, CVE-2016-8745
SHA-256 | 57a72bb771cc2225db7906a9c2ff594538c87f4e7e8aaf43d8de9b80f0774ac5

Ubuntu Security Notice USN-3177-2

Change Mirror Download

===========================================================================
Ubuntu Security Notice USN-3177-2
February 02, 2017

tomcat6, tomcat7 regression
===========================================================================

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

- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

USN-3177-1 introduced a regression in Tomcat.

Software Description:
- tomcat7: Servlet and JSP engine
- tomcat6: Servlet and JSP engine

Details:

USN-3177-1 fixed vulnerabilities in Tomcat. The update introduced a
regression in environments where Tomcat is started with a security manager.
This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that the Tomcat realm implementations incorrectly handled
passwords when a username didn't exist. A remote attacker could possibly
use this issue to enumerate usernames. This issue only applied to Ubuntu
12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-0762)
Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly
limited use of a certain utility method. A malicious application could
possibly use this to bypass Security Manager restrictions. This issue only
applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS.
(CVE-2016-5018)
It was discovered that Tomcat did not protect applications from untrusted
data in the HTTP_PROXY environment variable. A remote attacker could
possibly use this issue to redirect outbound traffic to an arbitrary proxy
server. This issue only applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and
Ubuntu 16.04 LTS. (CVE-2016-5388)
It was discovered that Tomcat incorrectly controlled reading system
properties. A malicious application could possibly use this to bypass
Security Manager restrictions. This issue only applied to Ubuntu 12.04 LTS,
Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6794)
It was discovered that Tomcat incorrectly controlled certain configuration
parameters. A malicious application could possibly use this to bypass
Security Manager restrictions. This issue only applied to Ubuntu 12.04 LTS,
Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6796)
It was discovered that Tomcat incorrectly limited access to global JNDI
resources. A malicious application could use this to access any global JNDI
resource without an explicit ResourceLink. This issue only applied to
Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6797)
Regis Leroy discovered that Tomcat incorrectly filtered certain invalid
characters from the HTTP request line. A remote attacker could possibly
use this issue to inject data into HTTP responses. (CVE-2016-6816)
Pierre Ernst discovered that the Tomcat JmxRemoteLifecycleListener did not
implement a recommended fix. A remote attacker could possibly use this
issue to execute arbitrary code. (CVE-2016-8735)
It was discovered that Tomcat incorrectly handled error handling in the
send file code. A remote attacker could possibly use this issue to access
information from other requests. (CVE-2016-8745)
Paul Szabo discovered that the Tomcat package incorrectly handled upgrades
and removals. A local attacker could possibly use this issue to obtain
root privileges. (CVE-2016-9774, CVE-2016-9775)

Update instructions:

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

Ubuntu 14.04 LTS:
libtomcat7-java 7.0.52-1ubuntu0.9
tomcat7 7.0.52-1ubuntu0.9

Ubuntu 12.04 LTS:
libtomcat6-java 6.0.35-1ubuntu3.10
tomcat6 6.0.35-1ubuntu3.10

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

References:
http://www.ubuntu.com/usn/usn-3177-2
http://www.ubuntu.com/usn/usn-3177-1
https://launchpad.net/bugs/1659589

Package Information:
https://launchpad.net/ubuntu/+source/tomcat7/7.0.52-1ubuntu0.9
https://launchpad.net/ubuntu/+source/tomcat6/6.0.35-1ubuntu3.10



Login or Register to add favorites

File Archive:

July 2022

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Hosting By
Rokasec
close