ESB-2018.3749 - [Ubuntu] perl: Multiple vulnerabilities 2018-12-04

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3749
                  Perl vulnerabilities patched in Ubuntu
                              4 December 2018

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

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

Product:           perl
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Execute Arbitrary Code/Commands -- Unknown/Unspecified
                   Denial of Service               -- Unknown/Unspecified
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-18314 CVE-2018-18313 CVE-2018-18312
                   CVE-2018-18311  

Reference:         ESB-2018.3718

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3834-1
   http://www.ubuntu.com/usn/usn-3834-2

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

- --------------------------BEGIN INCLUDED TEXT--------------------

==========================================================================
Ubuntu Security Notice USN-3834-1
December 03, 2018

perl 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 Perl.

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

Details:

Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv.
An attacker could use this issue to cause Perl to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2018-18311)

Eiichi Tsukata discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10.
(CVE-2018-18312)

Eiichi Tsukata discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service. (CVE-2018-18313)

Jakub Wilk discovered that Perl incorrectly handled certain regular
expressions. An attacker could use this issue to cause Perl to crash,
resulting in a denial of service. This issue only affected Ubuntu 16.04
LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10. (CVE-2018-18314)

Update instructions:

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

Ubuntu 18.10:
  perl                            5.26.2-7ubuntu0.1

Ubuntu 18.04 LTS:
  perl                            5.26.1-6ubuntu0.3

Ubuntu 16.04 LTS:
  perl                            5.22.1-9ubuntu0.6

Ubuntu 14.04 LTS:
  perl                            5.18.2-2ubuntu1.7

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

References:
  https://usn.ubuntu.com/usn/usn-3834-1
  CVE-2018-18311, CVE-2018-18312, CVE-2018-18313, CVE-2018-18314

Package Information:
  https://launchpad.net/ubuntu/+source/perl/5.26.2-7ubuntu0.1
  https://launchpad.net/ubuntu/+source/perl/5.26.1-6ubuntu0.3
  https://launchpad.net/ubuntu/+source/perl/5.22.1-9ubuntu0.6
  https://launchpad.net/ubuntu/+source/perl/5.18.2-2ubuntu1.7

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

==========================================================================
Ubuntu Security Notice USN-3834-2
December 03, 2018

perl vulnerabilities
==========================================================================

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

- - Ubuntu 12.04 ESM

Summary:

Several security issues were fixed in Perl.

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

Details:

USN-3834-1 fixed a vulnerability in perl. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

  Jayakrishna Menon discovered that Perl incorrectly handled
  Perl_my_setenv. An attacker could use this issue to cause Perl to
  crash, resulting in a denial of service, or possibly execute arbitrary
  code. (CVE-2018-18311)

  Eiichi Tsukata discovered that Perl incorrectly handled certain
  regular expressions. An attacker could use this issue to cause Perl to
  crash, resulting in a denial of service. (CVE-2018-18313)

Update instructions:

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

Ubuntu 12.04 ESM:
   perl                                                        5.14.2-6ubuntu2.9

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

References:
   https://usn.ubuntu.com/usn/usn-3834-2
   https://usn.ubuntu.com/usn/usn-3834-1
   CVE-2018-18311, CVE-2018-18313

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=26XJ
-----END PGP SIGNATURE-----

« Back to bulletins