Ubuntu Security Notice USN-2769-1

14th October, 2015

commons-httpclient vulnerabilities

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

• Ubuntu 15.04
• Ubuntu 14.04 LTS
• Ubuntu 12.04 LTS

Summary

Several security issues were fixed in commons-httpclient.

Software description

• commons-httpclient
  – A Java(TM) library for creating HTTP clients

Details

It was discovered that Apache Commons HttpClient did not properly verify the
Common Name or subjectAltName fields of X.509 certificates. An attacker could
exploit this to perform a man in the middle attack to view sensitive
information or alter encrypted communications. This issue only affected Ubuntu
12.04 LTS. (CVE-2012-5783)

Florian Weimer discovered the fix for CVE-2012-5783 was incomplete for Apache
Commons HttpClient. An attacker could exploit this to perform a man in the
middle attack to view sensitive information or alter encrypted communications.
This issue only affected Ubuntu 12.04 LTS. (CVE-2012-6153)

Subodh Iyengar and Will Shackleton discovered the fix for CVE-2012-5783 was
incomplete for Apache Commons HttpClient. An attacker could exploit this to
perform a man in the middle attack to view sensitive information or alter
encrypted communications. (CVE-2014-3577)

It was discovered that Apache Commons HttpClient did not properly handle read
timeouts during HTTPS handshakes. A remote attacker could trigger this flaw to
cause a denial of service. (CVE-2015-5262)

Update instructions

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

Ubuntu 15.04:

libcommons-httpclient-java

3.1-10.2ubuntu0.15.04.1

Ubuntu 14.04 LTS:

libcommons-httpclient-java

3.1-10.2ubuntu0.14.04.1

Ubuntu 12.04 LTS:

libcommons-httpclient-java

3.1-10ubuntu0.1

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2012-5783,

CVE-2012-6153,

CVE-2014-3577,

CVE-2015-5262

Ubuntu Security Notice USN-2709-2

14th October, 2015

pollinate update

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

• Ubuntu 15.04
• Ubuntu 14.04 LTS

Summary

The system would not have expected entropy available.

Software description

• pollinate
  – seed the pseudo random number generator in virtual machines

Details

USN-2709-1 updated pollinate’s certificate for entropy.ubuntu.com but did
not include a new certificate authority certificate.

This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

The pollinate package bundles the certificate for entropy.ubuntu.com. This
update refreshes the certificate to match the new certificate for the
server.

Update instructions

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

Ubuntu 15.04:

pollinate

4.11-0ubuntu2.2

Ubuntu 14.04 LTS:

pollinate

4.7-0ubuntu1.4

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

References

LP: 1506238