Home / mailings [RHSA-2023:3525-01] Important: python-flask security update
Posted on 07 June 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: python-flask security update
Advisory ID: RHSA-2023:3525-01
Product: Red Hat Enterprise Linux Extras
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3525
Issue date: 2023-06-07
CVE Names: CVE-2023-30861
=====================================================================
1. Summary:
An update for python-flask is now available for Red Hat Enterprise Linux 7
Extras.
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 7 Extras - noarch
3. Description:
Flask is a lightweight but extensible web development framework for Python
based on the Werkzeug WSGI toolkit, and the Jinja 2 template engine.
Security Fix(es):
* flask: Possible disclosure of permanent session cookie due to missing
Vary: Cookie header (CVE-2023-30861)
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
5. Bugs fixed (https://bugzilla.redhat.com/):
2196643 - CVE-2023-30861 flask: Possible disclosure of permanent session cookie due to missing Vary: Cookie header
6. Package List:
Red Hat Enterprise Linux 7 Extras:
Source:
python-flask-0.10.1-7.el7_9.src.rpm
noarch:
python-flask-0.10.1-7.el7_9.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-2023-30861
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 2023 Red Hat, Inc.
