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List:       ubuntu-security-announce
Subject:    [USN-3993-2] curl vulnerability
From:       "Leonidas S. Barbosa" <leo.barbosa () canonical ! com>
Date:       2019-05-22 16:51:33
Message-ID: 1558543893.6193.10.camel () canonical ! com
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==========================================================================
Ubuntu Security Notice USN-3993-2
May 22, 2019

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

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

- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM

Summary:

curl could be made to crash if it received a specially crafted data.

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

Details:

USN-3993-1 fixed a vulnerability in curl. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

 It was discovered that curl incorrectly handled memory when receiving
 data from a TFTP server. A remote attacker could use this issue to
 cause  curl to  crash, resulting in a denial of service, or possibly
 execute arbitrary code. (CVE-2019-5436)

Update instructions:

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

Ubuntu 14.04 ESM:
  curl                            7.35.0-1ubuntu2.20+esm2
  libcurl3                        7.35.0-1ubuntu2.20+esm2
  libcurl3-gnutls                 7.35.0-1ubuntu2.20+esm2
  libcurl3-nss                    7.35.0-1ubuntu2.20+esm2

Ubuntu 12.04 ESM:
  curl                            7.22.0-3ubuntu4.26
  libcurl3                        7.22.0-3ubuntu4.26
  libcurl3-gnutls                 7.22.0-3ubuntu4.26
  libcurl3-nss                    7.22.0-3ubuntu4.26

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

References:
  https://usn.ubuntu.com/usn/usn-3993-2
  https://usn.ubuntu.com/usn/usn-3993-1
  CVE-2019-5436
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