Bug 2039034 - CVE-2021-20316 samba: Symlink race error can allow metadata read and modify outside of the exported share [fedora-all]
Summary: CVE-2021-20316 samba: Symlink race error can allow metadata read and modify o...
Alias: None
Product: Fedora
Classification: Fedora
Component: samba
Version: 35
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Pavel Filipensky
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: CVE-2021-20316
TreeView+ depends on / blocked
Reported: 2022-01-10 18:47 UTC by Guilherme de Almeida Suckevicz
Modified: 2022-02-02 10:50 UTC (History)
12 users (show)

Fixed In Version:
Doc Type: No Doc Update
Doc Text:
Clone Of:
Last Closed: 2022-02-02 10:50:31 UTC
Type: ---

Attachments (Terms of Use)

Description Guilherme de Almeida Suckevicz 2022-01-10 18:47:24 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:

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 Guilherme de Almeida Suckevicz 2022-01-10 18:47:27 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)

# low, medium, high, urgent (required)

# testing, stable

# Bug numbers: 1234,9876

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

# Enable request automation based on the stable/unstable karma thresholds

# Automatically close bugs when this marked as stable

# Suggest that users restart after update


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


Comment 2 Pavel Filipensky 2022-01-20 09:24:17 UTC
This work has finally been completed in Samba 4.15.0.

Upstream advisory:

Comment 3 Guenther Deschner 2022-02-02 10:50:31 UTC
We rebased to Samba 4.15.0 a couple of months ago already with https://bodhi.fedoraproject.org/updates/FEDORA-2021-978ed960ba

Closing with currentrelease as the samba version currently shipped is providing the necessary updates already.

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