[USN-3884-1] libarchive vulnerabilities

[Leonidas S. Barbosa]

==========================================================================
Ubuntu Security Notice USN-3884-1
February 07, 2019

libarchive vulnerabilities
==========================================================================

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in libarchive.

Software Description:
- libarchive: Library to read/write archive files

Details:

It was discovered that libarchive incorrectly handled certain 7zip
files. An attacker could possibly use this issue to cause a denial of
service. (CVE-2019-1000019, CVE-2019-1000020)

Update instructions:

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

Ubuntu 18.10:
  libarchive13                    3.2.2-5ubuntu0.2

Ubuntu 18.04 LTS:
  libarchive13                    3.2.2-3.1ubuntu0.3

Ubuntu 16.04 LTS:
  libarchive13                    3.1.2-11ubuntu0.16.04.6

Ubuntu 14.04 LTS:
  libarchive13                    3.1.2-7ubuntu2.8

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

References:
  https://usn.ubuntu.com/usn/usn-3884-1
  CVE-2019-1000019, CVE-2019-1000020

Package Information:
  https://launchpad.net/ubuntu/+source/libarchive/3.2.2-5ubuntu0.2
  https://launchpad.net/ubuntu/+source/libarchive/3.2.2-3.1ubuntu0.3
  https://launchpad.net/ubuntu/+source/libarchive/3.1.2-11ubuntu0.16.04.6
  https://launchpad.net/ubuntu/+source/libarchive/3.1.2-7ubuntu2.8
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