USN-2769-1: Apache Commons HttpClient vulnerabilities

14 October 2015

Several security issues were fixed in commons-httpclient.

Releases

Packages

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 versions:

Ubuntu 15.04
Ubuntu 14.04
Ubuntu 12.04

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