[USN-3882-1] curl vulnerabilities

[Marc Deslauriers]

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