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

                               ESB-2019.0349
                           curl vulnerabilities
                              7 February 2019

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

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

Product:           curl
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-3823 CVE-2019-3822 CVE-2018-16890

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3882-1

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-3882-1
February 06, 2019

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

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

- - Ubuntu 18.10
- - Ubuntu 18.04 LTS
- - 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:

Wenxiang Qian discovered that curl incorrectly handled certain NTLM
authentication messages. A remote attacker could possibly use this issue to
cause curl to crash, resulting in a denial of service. This issue only
applied to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10.
(CVE-2018-16890)

Wenxiang Qian discovered that curl incorrectly handled certain NTLMv2
authentication messages. 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 applied to Ubuntu 16.04 LTS, Ubuntu 18.04
LTS, and Ubuntu 18.10. (CVE-2019-3822)

Brian Carpenter discovered that curl incorrectly handled certain SMTP
responses. A remote attacker could possibly use this issue to cause curl to
crash, resulting in a denial of service. (CVE-2019-3823)

Update instructions:

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

Ubuntu 18.10:
  curl                            7.61.0-1ubuntu2.3
  libcurl3-gnutls                 7.61.0-1ubuntu2.3
  libcurl3-nss                    7.61.0-1ubuntu2.3
  libcurl4                        7.61.0-1ubuntu2.3

Ubuntu 18.04 LTS:
  curl                            7.58.0-2ubuntu3.6
  libcurl3-gnutls                 7.58.0-2ubuntu3.6
  libcurl3-nss                    7.58.0-2ubuntu3.6
  libcurl4                        7.58.0-2ubuntu3.6

Ubuntu 16.04 LTS:
  curl                            7.47.0-1ubuntu2.12
  libcurl3                        7.47.0-1ubuntu2.12
  libcurl3-gnutls                 7.47.0-1ubuntu2.12
  libcurl3-nss                    7.47.0-1ubuntu2.12

Ubuntu 14.04 LTS:
  curl                            7.35.0-1ubuntu2.20
  libcurl3                        7.35.0-1ubuntu2.20
  libcurl3-gnutls                 7.35.0-1ubuntu2.20
  libcurl3-nss                    7.35.0-1ubuntu2.20

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

References:
  https://usn.ubuntu.com/usn/usn-3882-1
  CVE-2018-16890, CVE-2019-3822, CVE-2019-3823

Package Information:
  https://launchpad.net/ubuntu/+source/curl/7.61.0-1ubuntu2.3
  https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.6
  https://launchpad.net/ubuntu/+source/curl/7.47.0-1ubuntu2.12
  https://launchpad.net/ubuntu/+source/curl/7.35.0-1ubuntu2.20

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