log4net: Multiple vulnerabilities

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

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

                               ESB-2020.1753
                          log4net security update
                                18 May 2020

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

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

Product:           log4net
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Linux variants
Impact/Access:     Modify Arbitrary Files   -- Existing Account
                   Denial of Service        -- Existing Account
                   Access Confidential Data -- Existing Account
                   Reduced Security         -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1285  

Original Bulletin: 
   https://www.debian.org/lts/security/2020/dla-2211
   https://lists.debian.org/debian-lts-announce/2020/05/msg00014.html

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running log4net check for an updated version of the software for 
         their operating system.

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

Debian Security Advisory

DLA-2211-1 log4net -- LTS security update

Date Reported:
    15 May 2020
Affected Packages:
    log4net
Vulnerable:
    Yes
Security database references:
    In Mitre's CVE dictionary: CVE-2018-1285.
More information:

    It was discovered that there was an XML external entity vulnerability in
    log4net, a logging API for the ECMA Common Language Infrastructure (CLI),
    sometimes referred to as "Mono".

      - CVE-2018-1285

        Apache log4net before 2.0.8 does not disable XML external entities when
        parsing log4net configuration files. This could allow for XXE-based
        attacks in applications that accept arbitrary configuration files from
        users.

    For Debian 8 `Jessie', these problems have been fixed in version
    1.2.10+dfsg-6+deb8u1.

    We recommend that you upgrade your log4net packages.

    Further information about Debian LTS security advisories, how to apply
    these updates to your system and frequently asked questions can be found
    at: https://wiki.debian.org/LTS

- --------------------------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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=CqOZ
-----END PGP SIGNATURE-----