N/A - USN-3498-1

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

- Ubuntu 17.10 - Ubuntu 17.04 - 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:

Alex Nichols discovered that curl incorrectly handled NTLM authentication credentials. 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 16.04 LTS, Ubuntu 17.04 and Ubuntu 17.10. (CVE-2017-8816)

It was discovered that curl incorrectly handled FTP wildcard matching. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive information. (CVE-2017-8817)

Update instructions:

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

Ubuntu 17.10:
curl 7.55.1-1ubuntu2.2
libcurl3 7.55.1-1ubuntu2.2
libcurl3-gnutls 7.55.1-1ubuntu2.2
libcurl3-nss 7.55.1-1ubuntu2.2

Ubuntu 17.04:
curl 7.52.1-4ubuntu1.4
libcurl3 7.52.1-4ubuntu1.4
libcurl3-gnutls 7.52.1-4ubuntu1.4
libcurl3-nss 7.52.1-4ubuntu1.4

Ubuntu 16.04 LTS:
curl 7.47.0-1ubuntu2.5
libcurl3 7.47.0-1ubuntu2.5
libcurl3-gnutls 7.47.0-1ubuntu2.5
libcurl3-nss 7.47.0-1ubuntu2.5

Ubuntu 14.04 LTS:
curl 7.35.0-1ubuntu2.13
libcurl3 7.35.0-1ubuntu2.13
libcurl3-gnutls 7.35.0-1ubuntu2.13
libcurl3-nss 7.35.0-1ubuntu2.13

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

References:
https://www.ubuntu.com/usn/usn-3498-1
CVE-2017-8816, CVE-2017-8817

Package Information:
https://launchpad.net/ubuntu/+source/curl/7.55.1-1ubuntu2.2
https://launchpad.net/ubuntu/+source/curl/7.52.1-4ubuntu1.4
https://launchpad.net/ubuntu/+source/curl/7.47.0-1ubuntu2.5
https://launchpad.net/ubuntu/+source/curl/7.35.0-1ubuntu2.13