ESB-2021.1206 – [Debian] mediawiki: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.1206
                         mediawiki security update
                               12 April 2021

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

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

Product:           mediawiki
Publisher:         Debian
Operating System:  Debian GNU/Linux
Impact/Access:     Denial of Service    -- Remote/Unauthenticated      
                   Cross-site Scripting -- Remote with User Interaction
                   Reduced Security     -- Existing Account            
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-30159 CVE-2021-30158 CVE-2021-30157
                   CVE-2021-30155 CVE-2021-30154 CVE-2021-30152
                   CVE-2021-27291 CVE-2021-20270 

Reference:         ESB-2021.1100
                   ESB-2021.1070
                   ESB-2021.0984
                   ESB-2021.0849

Original Bulletin: 
   http://www.debian.org/security/2021/dsa-4889

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Debian Security Advisory DSA-4889-1                   security@debian.org
https://www.debian.org/security/                       Moritz Muehlenhoff
April 10, 2021                        https://www.debian.org/security/faq
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Package        : mediawiki
CVE ID         : CVE-2021-20270 CVE-2021-27291 CVE-2021-30152 CVE-2021-30159
                 CVE-2021-30154 CVE-2021-30155 CVE-2021-30157 CVE-2021-30158 

Multiple security issues were found in MediaWiki, a website engine for
collaborative work, which could result in incomplete page/blocking
protection, denial of service or cross-site scripting.

For the stable distribution (buster), these problems have been fixed in
version 1:1.31.14-1~deb10u1.

We recommend that you upgrade your mediawiki packages.

For the detailed security status of mediawiki please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/mediawiki

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

Mailing list: debian-security-announce@lists.debian.org
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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.
===========================================================================
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