A python-jinja2 security update has been released for Red Hat Enterprise Linux 8.
RHSA-2021:4161-02: Moderate: python-jinja2 security update
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Red Hat Security Advisory
Synopsis: Moderate: python-jinja2 security update
Advisory ID: RHSA-2021:4161-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4161
Issue date: 2021-11-09
CVE Names: CVE-2020-28493
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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 Moderate. 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: ReDoS vulnerability due to the sub-pattern
(CVE-2020-28493)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.5 Release Notes linked from 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/):
1928707 - CVE-2020-28493 python-jinja2: ReDoS vulnerability in the urlize filter
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
python-jinja2-2.10.1-3.el8.src.rpm
noarch:
python3-jinja2-2.10.1-3.el8.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-2020-28493
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
