ESB-2018.1504 - [Linux][Ubuntu] cURL: Multiple vulnerabilities 2018-05-17

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1504
                           curl vulnerabilities
                                17 May 2018

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           cURL
Publisher:         Ubuntu
Operating System:  Ubuntu
                   Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
                   Access Confidential Data        -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000303 CVE-2018-1000301 CVE-2018-1000300

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3648-1

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Ubuntu. It is recommended that administrators 
         running cURL check for an updated version of the software for their
         operating system.

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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

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