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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
 <ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <52a7c63c-4bcf-36fc-c195-b24ccf327ad3@canonical.com>
Subject: [USN-3611-1] OpenSSL vulnerability

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==========================================================================
Ubuntu Security Notice USN-3611-1
March 28, 2018

openssl vulnerability
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

OpenSSL could be made to crash if it received specially crafted network
traffic.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

It was discovered that OpenSSL incorrectly handled certain ASN.1 types. A
remote attacker could possibly use this issue to cause a denial of service.

Update instructions:

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

Ubuntu 17.10:
  libssl1.0.0                     1.0.2g-1ubuntu13.4

Ubuntu 16.04 LTS:
  libssl1.0.0                     1.0.2g-1ubuntu4.11

Ubuntu 14.04 LTS:
  libssl1.0.0                     1.0.1f-1ubuntu2.24

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3611-1
  CVE-2018-0739

Package Information:
  https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu13.4
  https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.11
  https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu2.24


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