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Bug 1693357 - fprintd: stores user fingerprints as image files without encryption [fedora-all]
Summary: fprintd: stores user fingerprints as image files without encryption [fedora-all]
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: fprintd
Version: 29
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: Bastien Nocera
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-03-27 16:02 UTC by Laura Pardo
Modified: 2019-04-12 09:36 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed:


Attachments (Terms of Use)

Description Laura Pardo 2019-03-27 16:02:45 UTC
This is an automatically created tracking bug!  It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.

For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.

For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs

When submitting as an update, use the fedpkg template provided in the next
comment(s).  This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.

Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.

NOTE: this issue affects multiple supported versions of Fedora. While only
one tracking bug has been filed, please correct all affected versions at
the same time.  If you need to fix the versions independent of each other,
you may clone this bug as appropriate.

Comment 1 Laura Pardo 2019-03-27 16:02:47 UTC
Use the following template to for the 'fedpkg update' request to submit an
update for this issue as it contains the top-level parent bug(s) as well as
this tracking bug.  This will ensure that all associated bugs get updated
when new packages are pushed to stable.

=====

# bugfix, security, enhancement, newpackage (required)
type=security

# low, medium, high, urgent (required)
severity=low

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=1693356,1693357

# Description of your update
notes=Security fix for [PUT CVEs HERE]

# Enable request automation based on the stable/unstable karma thresholds
autokarma=True
stable_karma=3
unstable_karma=-3

# Automatically close bugs when this marked as stable
close_bugs=True

# Suggest that users restart after update
suggest_reboot=False

======

Additionally, you may opt to use the bodhi web interface to submit updates:

https://bodhi.fedoraproject.org/updates/new

Comment 2 Bastien Nocera 2019-04-03 10:20:45 UTC
There are no short-term plans to fixing this. Any attempts at encrypting the fingerprints would just be security through obscurity as the decryption would need to be made available to fprintd and would therefore be available to other processes.

The only way to currently safeguard the fingerprints is to run with SELinux enabled, and made sure that only the fprintd binary has access to those saved fingerprints.

Comment 3 Seong-Joong Kim 2019-04-12 09:36:17 UTC
As mentioned before, I don’t think it would be as good.

Particularly, desktop users usually disable or change SELinux setting from enforce to permissive mode.

I think that it is not justifiable to shift protection responsibility to OS entirely.

Instead, we need to devise a data encryption/protection scheme at least.

What do you think of it?


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