USN-3498-1: curl vulnerabilities

Releases

• Ubuntu 17.10
• Ubuntu 17.04
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• 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

• 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

• 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

• CVE-2017-8816
• CVE-2017-8817

Related notices

• USN-3498-2: libcurl3-gnutls, curl, libcurl3, libcurl3-nss