USN-2167-1: curl vulnerabilities

14 April 2014

curl vulnerabilities

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

  • Ubuntu 13.10
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS


Several security issues were fixed in curl.

Software Description

  • 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. (CVE-2014-0138)

Richard Moore discovered that libcurl incorrectly validated wildcard SSL certificates that contain literal IP addresses. An attacker could possibly exploit this to perform a man 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
libcurl3 - 7.32.0-1ubuntu1.4
libcurl3-gnutls - 7.32.0-1ubuntu1.4
libcurl3-nss - 7.32.0-1ubuntu1.4
Ubuntu 12.10
libcurl3 - 7.27.0-1ubuntu1.9
libcurl3-gnutls - 7.27.0-1ubuntu1.9
libcurl3-nss - 7.27.0-1ubuntu1.9
Ubuntu 12.04 LTS
libcurl3 - 7.22.0-3ubuntu4.8
libcurl3-gnutls - 7.22.0-3ubuntu4.8
libcurl3-nss - 7.22.0-3ubuntu4.8
Ubuntu 10.04 LTS
libcurl3 - 7.19.7-1ubuntu1.7
libcurl3-gnutls - 7.19.7-1ubuntu1.7

To update your system, please follow these instructions:

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