Ubuntu 13.04: USN-1948-1 Critical Hit: Httplib2 Man-In-The-Middle Threat

ubuntu

September 9, 2013

Fraudulent security certificates could allow sensitive information to be exposed when accessing the Internet.

Summary

Fraudulent security certificates could allow sensitive information to

be exposed when accessing the Internet.

Software Description:

- python-httplib2: comprehensive HTTP client library written for Python

Details:

It was discovered that httplib2 only validated SSL certificates on the

first request to a connection, and didn't report validation failures on

subsequent requests. If a remote attacker were able to perform a

man-in-the-middle attack, this flaw could possibly be exploited in certain

scenarios to alter or compromise confidential information in applications

that used the httplib2 library.

Topics Covered

security advisory critical update instructions ubuntu man-in-the-middle certificate flaw http client

Update Instructions

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

Ubuntu 13.04:
  python-httplib2                 0.7.7-1ubuntu0.1

Ubuntu 12.10:
  python-httplib2                 0.7.4-2ubuntu0.1

Ubuntu 12.04 LTS:
  python-httplib2                 0.7.2-1ubuntu2.1

Ubuntu 10.04 LTS:
  python-httplib2                 0.7.2-1ubuntu2~0.10.04.2

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