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Red Hat Security Advisory 2019-1152-01

Red Hat Security Advisory 2019-1152-01
Posted May 13, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1152-01 - 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. Issues addressed include a sandbox escape vulnerability.

tags | advisory, python
systems | linux, redhat
advisories | CVE-2019-10906
MD5 | c5246f341ceb4d9acdfb7fe07e1889e3

Red Hat Security Advisory 2019-1152-01

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

Synopsis: Important: python-jinja2 security update
Advisory ID: RHSA-2019:1152-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1152
Issue date: 2019-05-13
CVE Names: CVE-2019-10906
====================================================================
1. Summary:

An update for python-jinja2 is now available for Red Hat Enterprise Linux
8.

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 AppStream (v. 8) - 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: str.format_map allows sandbox escape (CVE-2019-10906)

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/):

1698839 - CVE-2019-10906 python-jinja2: str.format_map allows sandbox escape

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
python-jinja2-2.10.1-2.el8_0.src.rpm

noarch:
python3-jinja2-2.10.1-2.el8_0.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-2019-10906
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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