Bug 1109179 - (CVE-2018-17175) VUL-1: CVE-2018-17175: python-marshmallow: Information leak due to invalid usage of the schema "only" option
(CVE-2018-17175)
VUL-1: CVE-2018-17175: python-marshmallow: Information leak due to invalid us...
Status: NEW
Classification: openSUSE
Product: openSUSE Distribution
Classification: openSUSE
Component: Security
Leap 15.1
Other Other
: P4 - Low : Normal (vote)
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Assigned To: Dirk Mueller
Security Team bot
https://smash.suse.de/issue/215034/
CVSSv3:RedHat:CVE-2018-17175:5.9:(AV...
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Reported: 2018-09-20 15:41 UTC by Alexander Bergmann
Modified: 2020-01-16 14:30 UTC (History)
1 user (show)

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Found By: Security Response Team
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Description Alexander Bergmann 2018-09-20 15:41:06 UTC
rh#1631411

In the marshmallow library before 2.15.1 and 3.x before 3.0.0b9 for Python, the
schema "only" option treats an empty list as implying no "only" option, which
allows a request that was intended to expose no fields to instead expose all
fields (if the schema is being filtered dynamically using the "only" option, and
there is a user role that produces an empty value for "only").

References:
https://bugzilla.redhat.com/show_bug.cgi?id=1631411
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-17175
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-17175.html
https://github.com/marshmallow-code/marshmallow/issues/772
https://github.com/marshmallow-code/marshmallow/pull/777
https://github.com/marshmallow-code/marshmallow/pull/782