Bug 2217897

Summary: python-pip: Python tarfile extraction needs change to avoid a warning (CVE-2007-4559 mitigation)
Product: Red Hat Enterprise Linux 9 Reporter: Petr Viktorin <pviktori>
Component: python-pipAssignee: Python Maintainers <python-maint>
Status: CLOSED NOTABUG QA Contact: RHEL CS Apps Subsystem QE <rhel-cs-apps-subsystem-qe>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 9.3   
Target Milestone: rc   
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Hardware: Unspecified   
OS: Unspecified   
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Last Closed: 2023-06-27 12:24:02 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 263261, 2207715, 2218240, 2218243, 2218246, 2218248, 2218274, 2218277    
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Description Petr Viktorin 2023-06-27 12:21:07 UTC 
Hello,
In RHEL 9.3 and 8.9, we're planning to fix the long-standing CVE-2007-4559: Python's `tarfile` module makes it too easy to extract tarballs in an unsafe way.
Unfortunately, for the CVE to be considered fixed, this needs a behavior change. (If you don't think this is the case, let's bring it up with the security team.)
Upstream, Python will emit deprecation warnings for 2 releases, but in RHEL we change the behavior now, emit warnings, and provide ways for customers to restore earlier behavior.
To avoid the warning, software shipped by Red Hat will need a change.

For more details see upstream PEP 706: https://peps.python.org/pep-0706
and the Red Hat knowledge base draft: https://access.redhat.com/articles/7004769

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fence-agents-kubevirt will need changes in two places:

- In /usr/lib/fence-agents/bundled/kubevirt/dateutil/zoneinfo/rebuild.py: tf.extract(name, tmpdir)
- In /usr/lib/fence-agents/bundled/kubevirt/setuptools/archive_util.py: tarobj._extract_member

Both are in bundled libraries, and will need the fix from the following bugs backported to the bundled copy:

dateutil: https://bugzilla.redhat.com/show_bug.cgi?id=2203905
setuptools: https://bugzilla.redhat.com/show_bug.cgi?id=2207715

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Let me know if you have any questions!
Comment 1 Petr Viktorin 2023-06-27 12:24:02 UTC 
Oops! Please ignore this.