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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1760
                            Perl vulnerability
                               14 June 2018

===========================================================================

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

Product:           perl
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Modify Arbitrary Files -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-12015  

Reference:         ESB-2018.1739

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3684-1
   http://www.ubuntu.com/usn/usn-3684-2

Comment: This bulletin contains two (2) Ubuntu security advisories.

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==========================================================================
Ubuntu Security Notice USN-3684-1
June 13, 2018

perl vulnerability
==========================================================================

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

- - Ubuntu 18.04 LTS
- - Ubuntu 17.10
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS

Summary:

Perl could be made to overwrite arbitrary files if it received
a specially crafted archive file.

Software Description:
- - perl: Practical Extraction and Report Language

Details:

It was discovered that Perl incorrectly handled certain archive files.
An attacker could possibly use this to overwrite arbitrary files.

Update instructions:

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

Ubuntu 18.04 LTS:
  perl                            5.26.1-6ubuntu0.1

Ubuntu 17.10:
  perl                            5.26.0-8ubuntu1.2

Ubuntu 16.04 LTS:
  perl                            5.22.1-9ubuntu0.5

Ubuntu 14.04 LTS:
  perl                            5.18.2-2ubuntu1.6

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

References:
  https://usn.ubuntu.com/usn/usn-3684-1
  CVE-2018-12015

Package Information:
  https://launchpad.net/ubuntu/+source/perl/5.26.1-6ubuntu0.1
  https://launchpad.net/ubuntu/+source/perl/5.26.0-8ubuntu1.2
  https://launchpad.net/ubuntu/+source/perl/5.22.1-9ubuntu0.5
  https://launchpad.net/ubuntu/+source/perl/5.18.2-2ubuntu1.6

- -------------------------------------------------------------------------------

==========================================================================
Ubuntu Security Notice USN-3684-2
June 13, 2018

perl vulnerability
==========================================================================

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

- - Ubuntu 12.04 ESM

Summary:

Perl could be made to overwrite arbitrary files if it received
a specially crafted archive file.

Software Description:
- - perl: Practical Extraction and Report Language

Details:

USN-3684-1 fixed a vulnerability in perl. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 It was discovered that Perl incorrectly handled certain archive files.
 An attacker could possibly use this to overwrite arbitrary files.

Update instructions:

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

Ubuntu 12.04 ESM:
  perl                            5.14.2-6ubuntu2.8

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

References:
  https://usn.ubuntu.com/usn/usn-3684-2
  https://usn.ubuntu.com/usn/usn-3684-1
  CVE-2018-12015

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