Bug 1899774 - CVE-2020-27748 flatpak-xdg-utils: xdg-utils: local file inclusion vulnerability [fedora-32]
Summary: CVE-2020-27748 flatpak-xdg-utils: xdg-utils: local file inclusion vulnerabili...
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: flatpak-xdg-utils
Version: 32
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Owen Taylor
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: CVE-2020-27748
TreeView+ depends on / blocked
 
Reported: 2020-11-20 00:14 UTC by Todd Cullum
Modified: 2021-02-08 17:05 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-02-08 17:05:50 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Todd Cullum 2020-11-20 00:14:04 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-32.

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.

Comment 1 Todd Cullum 2020-11-20 00:14:07 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=medium

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=1899769,1899774

# 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 Owen Taylor 2021-02-08 17:05:26 UTC
The flatpak version of xdg-email does not use the actual xdg-email script, which is where the functionality at question here is.

Older versions simply error out on mailto: URIs
Newer versions (since august 2020), pass a mailto URI to the OpenURI portal in xdg-desktop-portal, which, if the user's selected MUA is thunderbird, calls thunderbird <mailto-url>, and thunderbird does not process attach= when called in that fashion.


Note You need to log in before you can comment on or make changes to this bug.