[USN-3554-2] curl vulnerability

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3554-2
February 01, 2018

curl vulnerability
==========================================================================

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

- Ubuntu 12.04 ESM

Summary:

curl could be made to expose sensitive information.

Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries

Details:

USN-3554-1 fixed vulnerabilities in curl.  This update
provides the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 It was discovered that curl could accidentally leak authentication
 data. An attacker could possibly use this to get access to sensitive
 information. (CVE-2018-1000007)

Update instructions:

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

Ubuntu 12.04 ESM:
  curl                            7.22.0-3ubuntu4.20
  libcurl3                        7.22.0-3ubuntu4.20
  libcurl3-gnutls                 7.22.0-3ubuntu4.20
  libcurl3-nss                    7.22.0-3ubuntu4.20

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

References:
  https://www.ubuntu.com/usn/usn-3554-2
  https://www.ubuntu.com/usn/usn-3554-1
  CVE-2018-1000007
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