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Ubuntu Security Notice USN-3710-1
July 11, 2018

curl vulnerability
==========================================================================

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

– Ubuntu 18.04 LTS
– Ubuntu 17.10

Summary:

curl could be made to crash or run programs if it received specially
crafted network traffic.

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

Details:

Peter Wu discovered that curl incorrectly handled certain SMTP buffers. A
remote attacker could use this issue to cause curl to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

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

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

Ubuntu 17.10:
curl 7.55.1-1ubuntu2.6
libcurl3 7.55.1-1ubuntu2.6
libcurl3-gnutls 7.55.1-1ubuntu2.6
libcurl3-nss 7.55.1-1ubuntu2.6

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

References:
https://usn.ubuntu.com/usn/usn-3710-1
CVE-2018-0500

Package Information:
https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.2
https://launchpad.net/ubuntu/+source/curl/7.55.1-1ubuntu2.6

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