ESB-2019.0185 - [UNIX/Linux][Ubuntu] apt: Root compromise - Remote/unauthenticated 2019-01-23

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0185
                             APT vulnerability
                              23 January 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           apt
Publisher:         Ubuntu
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Ubuntu
Impact/Access:     Root Compromise                -- Remote/Unauthenticated
                   Access Privileged Data         -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-3462  

Reference:         ESB-2019.0182

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3863-1
   http://www.ubuntu.com/usn/usn-3863-2

Comment: This bulletin contains two (2) advisories.

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Ubuntu Security Notice USN-3863-1
January 22, 2019

apt vulnerability

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:

An attacker could trick APT into installing altered packages.

Software Description:
- - apt: Advanced front-end for dpkg

Details:

Max Justicz discovered that APT incorrectly handled certain parameters
during redirects. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could potentially be used to install
altered packages.

Update instructions:

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

Ubuntu 18.10: apt1.7.0ubuntu0.1

Ubuntu 18.04 LTS: apt1.6.6ubuntu0.1

Ubuntu 16.04 LTS: ap1.2.29ubuntu0.1

Ubuntu 14.04 LTS: apt1.0.1ubuntu2.19

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


References:
  https://usn.ubuntu.com/usn/usn-3863-1
  CVE-2019-3462

Package Information:
  https://launchpad.net/ubuntu/+source/apt/1.7.0ubuntu0.1
  https://launchpad.net/ubuntu/+source/apt/1.6.6ubuntu0.1
  https://launchpad.net/ubuntu/+source/apt/1.2.29ubuntu0.1
  https://launchpad.net/ubuntu/+source/apt/1.0.1ubuntu2.19

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Ubuntu Security Notice USN-3863-2
January 22, 2019

apt vulnerability
==========================================================================

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

- - Ubuntu 12.04 ESM

Summary:

An attacker could trick APT into installing altered packages.

Software Description:
- - apt: Advanced front-end for dpkg

Details:

USN-3863-1 fixed a vulnerability in APT. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Max Justicz discovered that APT incorrectly handled certain parameters
during redirects. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could potentially be used to
install altered packages.

Update instructions:

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

Ubuntu 12.04 ESM:

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

References:
  https://usn.ubuntu.com/usn/usn-3863-2
  https://usn.ubuntu.com/usn/usn-3863-1
  CVE-2019-3462

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