[RHSA-2021:4201-04] Moderate: babel security and bug fix update

[Security announcements for all Red Hat products and services.]

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                   Red Hat Security Advisory

Synopsis:          Moderate: babel security and bug fix update
Advisory ID:       RHSA-2021:4201-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:4201
Issue date:        2021-11-09
CVE Names:         CVE-2021-20095 CVE-2021-42771 
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1. Summary:

An update for babel 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:

Babel provides tools to build and work with gettext message catalogs, and a
Python interface to the CLDR (Common Locale Data Repository), providing
access to various locale display names, localized number and date
formatting, etc.

Security Fix(es):

* python-babel: Relative path traversal allows attacker to load arbitrary
locale files and execute arbitrary code (CVE-2021-20095, CVE-2021-42771)

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

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

1955615 - CVE-2021-20095 CVE-2021-42771 python-babel: Relative path traversal allows attacker to load arbitrary locale files and execute arbitrary code

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
babel-2.5.1-7.el8.src.rpm

noarch:
python3-babel-2.5.1-7.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-2021-20095
https://access.redhat.com/security/cve/CVE-2021-42771
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 <secalert at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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