[USN-3805-2] curl vulnerability

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Ubuntu Security Notice USN-3805-2
November 01, 2018

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

- Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in curl.

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

Details:

USN-3805-1 fixed a vulnerability in curl. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 Brian Carpenter discovered that the curl command-line tool incorrectly
 handled error messages. A remote attacker could possibly use this
 issue to obtain sensitive information. (CVE-2018-16842)

Update instructions:

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

Ubuntu 12.04 ESM:
  curl                            7.22.0-3ubuntu4.24
  libcurl3                        7.22.0-3ubuntu4.24
  libcurl3-gnutls                 7.22.0-3ubuntu4.24
  libcurl3-nss                    7.22.0-3ubuntu4.24

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

References:
  https://usn.ubuntu.com/usn/usn-3805-2
  https://usn.ubuntu.com/usn/usn-3805-1
  CVE-2018-16842