Operating System:

[RedHat]

Published:

27 November 2019

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.4487
              python-jinja2 security update for RHEL 7.5 EUS
                             27 November 2019

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

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

Product:           python-jinja2
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
Impact/Access:     Increased Privileges -- Existing Account
                   Unauthorised Access  -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-10745  

Reference:         ESB-2019.2175
                   ESB-2019.2041
                   ESB-2019.1578

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2019:3964

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: python-jinja2 security update
Advisory ID:       RHSA-2019:3964-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:3964
Issue date:        2019-11-26
CVE Names:         CVE-2016-10745 
=====================================================================

1. Summary:

An update for python-jinja2 is now available for Red Hat Enterprise Linux
7.5 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5) - noarch
Red Hat Enterprise Linux Server EUS (v. 7.5) - noarch

3. Description:

The python-jinja2 package contains Jinja2, a template engine written in
pure Python. Jinja2 provides a Django inspired non-XML syntax but supports
inline expressions and an optional sandboxed environment. 

Security Fix(es):

* python-jinja2: Sandbox escape due to information disclosure via
str.format (CVE-2016-10745)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

For the update to take effect, all applications using Jinja2 must be
restarted.

5. Bugs fixed (https://bugzilla.redhat.com/):

1698345 - CVE-2016-10745 python-jinja2: Sandbox escape due to information disclosure via str.format

6. Package List:

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.5):

Source:
python-jinja2-2.7.2-3.el7_5.src.rpm

noarch:
python-jinja2-2.7.2-3.el7_5.noarch.rpm

Red Hat Enterprise Linux Server EUS (v. 7.5):

Source:
python-jinja2-2.7.2-3.el7_5.src.rpm

noarch:
python-jinja2-2.7.2-3.el7_5.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2016-10745
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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