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Red Hat: RHSA-2023:3525 Critical: Python Flask Session Cookie Risk

red hat
Calendar Grey June 7, 2023
Dist Redhat Esm H88
Crucial security patch released for python-flask on Red Hat, addressing severe risk of session cookie leakage. Immediate upgrade recommended.
An update for python-flask is now available for Red Hat Enterprise Linux 7 Extras

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

Summary

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.

Topics%20covered

Topics Covered

security advisory software update Red Hat Enterprise Linux important security risk session cookie python-flask

References

https://access.redhat.com/security/cve/CVE-2023-30861 https://access.redhat.com/security/updates/classification#important

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


Severity
important
Lowest
Low
Medium
High
Critical

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

Topic

An update for python-flask is now available for Red Hat Enterprise Linux 7Extras.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory software update Red Hat Enterprise Linux important security risk session cookie python-flask

Relevant Releases Architectures

Red Hat Enterprise Linux 7 Extras - noarch

Bugs Fixed

2196643 - CVE-2023-30861 flask: Possible disclosure of permanent session cookie due to missing Vary: Cookie header

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