==========================================================================
Ubuntu Security Notice USN-4129-1
September 11, 2019

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

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

– Ubuntu 19.04
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in curl.

Software Description:
– curl: HTTP, HTTPS, and FTP client and client libraries

Details:

Thomas Vegas discovered that curl incorrectly handled memory when using
Kerberos over FTP. A remote attacker could use this issue to crash curl,
resulting in a denial of service. (CVE-2019-5481)

Thomas Vegas discovered that curl incorrectly handled memory during TFTP
transfers. A remote attacker could use this issue to crash curl, resulting
in a denial of service, or possibly execute arbitrary code. (CVE-2019-5482)

Update instructions:

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

Ubuntu 19.04:
curl 7.64.0-2ubuntu1.2
libcurl3-gnutls 7.64.0-2ubuntu1.2
libcurl3-nss 7.64.0-2ubuntu1.2
libcurl4 7.64.0-2ubuntu1.2

Ubuntu 18.04 LTS:
curl 7.58.0-2ubuntu3.8
libcurl3-gnutls 7.58.0-2ubuntu3.8
libcurl3-nss 7.58.0-2ubuntu3.8
libcurl4 7.58.0-2ubuntu3.8

Ubuntu 16.04 LTS:
curl 7.47.0-1ubuntu2.14
libcurl3 7.47.0-1ubuntu2.14
libcurl3-gnutls 7.47.0-1ubuntu2.14
libcurl3-nss 7.47.0-1ubuntu2.14

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

References:
https://usn.ubuntu.com/4129-1
CVE-2019-5481, CVE-2019-5482

Package Information:
https://launchpad.net/ubuntu/+source/curl/7.64.0-2ubuntu1.2
https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.8
https://launchpad.net/ubuntu/+source/curl/7.47.0-1ubuntu2.14
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