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

                               ESB-2021.3520
                       python-babel security update
                              22 October 2021

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

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

Product:           python-babel
Publisher:         Debian
Operating System:  Debian GNU/Linux
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Reduced Security                -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-42771  

Original Bulletin: 
   https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html

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

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Debian LTS Advisory DLA-2790-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Sylvain Beucler
October 21, 2021                              https://wiki.debian.org/LTS
- - -------------------------------------------------------------------------

Package        : python-babel
Version        : 2.3.4+dfsg.1-2+deb9u1
CVE ID         : CVE-2021-42771
Debian Bug     : 987824

Tenable discovered that in Babel, a set of tools for
internationalizing Python applications, Babel.Locale allows attackers
to load arbitrary locale .dat files (containing serialized Python
objects) via directory traversal, leading to code execution.  This
vulnerability was also previously addressed under CVE-2021-20095 in
other distributions and suites.

For Debian 9 stretch, this problem has been fixed in version
2.3.4+dfsg.1-2+deb9u1.

We recommend that you upgrade your python-babel packages.

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

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
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