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Ubuntu Security Notice USN-3648-1
May 16, 2018

curl vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in curl.

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

Details:

Dario Weisser discovered that curl incorrectly handled long FTP server
command replies. If a user or automated system were tricked into connecting
to a malicious FTP server, a remote attacker could use this issue to cause
curl to crash, resulting in a denial of service, or possibly execute
arbitrary code. This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS.
(CVE-2018-1000300)

Max Dymond discovered that curl incorrectly handled certain RTSP responses.
If a user or automated system were tricked into connecting to a malicious
server, a remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2018-1000301)

Update instructions:

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

Ubuntu 18.04 LTS:
  curl                            7.58.0-2ubuntu3.1
  libcurl3-gnutls                 7.58.0-2ubuntu3.1
  libcurl3-nss                    7.58.0-2ubuntu3.1
  libcurl4                        7.58.0-2ubuntu3.1

Ubuntu 17.10:
  curl                            7.55.1-1ubuntu2.5
  libcurl3                        7.55.1-1ubuntu2.5
  libcurl3-gnutls                 7.55.1-1ubuntu2.5
  libcurl3-nss                    7.55.1-1ubuntu2.5

Ubuntu 16.04 LTS:
  curl                            7.47.0-1ubuntu2.8
  libcurl3                        7.47.0-1ubuntu2.8
  libcurl3-gnutls                 7.47.0-1ubuntu2.8
  libcurl3-nss                    7.47.0-1ubuntu2.8

Ubuntu 14.04 LTS:
  curl                            7.35.0-1ubuntu2.16
  libcurl3                        7.35.0-1ubuntu2.16
  libcurl3-gnutls                 7.35.0-1ubuntu2.16
  libcurl3-nss                    7.35.0-1ubuntu2.16

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

References:
  https://usn.ubuntu.com/usn/usn-3648-1
  CVE-2018-1000300, CVE-2018-1000301, CVE-2018-1000303

Package Information:
  https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.1
  https://launchpad.net/ubuntu/+source/curl/7.55.1-1ubuntu2.5
  https://launchpad.net/ubuntu/+source/curl/7.47.0-1ubuntu2.8
  https://launchpad.net/ubuntu/+source/curl/7.35.0-1ubuntu2.16