USN-3498-1: curl vulnerabilities

Ubuntu Security Notice USN-3498-1

29th November, 2017

curl vulnerabilities

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 version:

Ubuntu 17.10:
libcurl3-nss 7.55.1-1ubuntu2.2
curl 7.55.1-1ubuntu2.2
libcurl3-gnutls 7.55.1-1ubuntu2.2
libcurl3 7.55.1-1ubuntu2.2
Ubuntu 17.04:
libcurl3-nss 7.52.1-4ubuntu1.4
curl 7.52.1-4ubuntu1.4
libcurl3-gnutls 7.52.1-4ubuntu1.4
libcurl3 7.52.1-4ubuntu1.4
Ubuntu 16.04 LTS:
libcurl3-nss 7.47.0-1ubuntu2.5
curl 7.47.0-1ubuntu2.5
libcurl3-gnutls 7.47.0-1ubuntu2.5
libcurl3 7.47.0-1ubuntu2.5
Ubuntu 14.04 LTS:
libcurl3-nss 7.35.0-1ubuntu2.13
curl 7.35.0-1ubuntu2.13
libcurl3-gnutls 7.35.0-1ubuntu2.13
libcurl3 7.35.0-1ubuntu2.13

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2017-8816, CVE-2017-8817