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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
Message-ID: <614cc526-7e3d-cdb4-d8ea-2f30aea7691a@canonical.com>
Subject: [USN-3571-1] Erlang vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3571-1
February 14, 2018

erlang vulnerabilities
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Erlang.

Software Description:
- erlang: Concurrent, real-time, distributed functional language

Details:

It was discovered that the Erlang FTP module incorrectly handled certain
CRLF sequences. A remote attacker could possibly use this issue to inject
arbitrary FTP commands. This issue only affected Ubuntu 14.04 LTS.
(CVE-2014-1693)

It was discovered that Erlang incorrectly checked CBC padding bytes. A
remote attacker could possibly use this issue to perform a padding oracle
attack and decrypt traffic. This issue only affected Ubuntu 14.04 LTS.
(CVE-2015-2774)

It was discovered that Erlang incorrectly handled certain regular
expressions. A remote attacker could possibly use this issue to cause
Erlang to crash, resulting in a denial of service, or execute arbitrary
code. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-10253)

Hanno Böck, Juraj Somorovsky and Craig Young discovered that the Erlang
otp TLS server incorrectly handled error reporting. A remote attacker could
possibly use this issue to perform a variation of the Bleichenbacher attack
and decrypt traffic or sign messages. (CVE-2017-1000385)

Update instructions:

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

Ubuntu 17.10:
  erlang                          1:20.0.4+dfsg-1ubuntu1.1

Ubuntu 16.04 LTS:
  erlang                          1:18.3-dfsg-1ubuntu3.1

Ubuntu 14.04 LTS:
  erlang                          1:16.b.3-dfsg-1ubuntu2.2

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

References:
  https://www.ubuntu.com/usn/usn-3571-1
  CVE-2014-1693, CVE-2015-2774, CVE-2016-10253, CVE-2017-1000385

Package Information:
  https://launchpad.net/ubuntu/+source/erlang/1:20.0.4+dfsg-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/erlang/1:18.3-dfsg-1ubuntu3.1
  https://launchpad.net/ubuntu/+source/erlang/1:16.b.3-dfsg-1ubuntu2.2



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