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USN-2167-1: curl vulnerabilities

14 April 2014

Several security issues were fixed in curl.



  • curl - HTTP, HTTPS, and FTP client and client libraries


Steve Holme discovered that libcurl incorrectly reused wrong connections
when using protocols other than HTTP and FTP. This could lead to the use of
unintended credentials, possibly exposing sensitive information.

Richard Moore discovered that libcurl incorrectly validated wildcard SSL
certificates that contain literal IP addresses. An attacker could possibly
exploit this to perform a machine-in-the-middle attack to view sensitive
information or alter encrypted communications. (CVE-2014-0139)

Update instructions

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

Ubuntu 13.10
Ubuntu 12.10
Ubuntu 12.04
Ubuntu 10.04

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