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A RHUI 4.4.0 update has been released for Red Hat Enterprise Linux 8.

RHSA-2023:2101-01: Moderate: RHUI 4.4.0 release - Security Fixes, Bug Fixes, and Enhancements Update

Red Hat Security Advisory

Synopsis: Moderate: RHUI 4.4.0 release - Security Fixes, Bug Fixes, and Enhancements Update
Advisory ID: RHSA-2023:2101-01
Product: Red Hat Update Infrastructure
Advisory URL:
Issue date: 2023-05-03
CVE Names: CVE-2022-40899 CVE-2023-23969 CVE-2023-24580

1. Summary:

An updated version of Red Hat Update Infrastructure (RHUI) is now
available. RHUI 4.4 fixes several security and operational bugs, and
introduces multiple new features.

2. Relevant releases/architectures:

RHUI 4 for RHEL 8 - noarch

3. Description:

Red Hat Update Infrastructure (RHUI) offers a highly scalable, highly
redundant framework that enables you to manage repositories and content. It
also enables cloud providers to deliver content and updates to Red Hat
Enterprise Linux (RHEL) instances.

Security Fix(es):
* Django: Potential denial-of-service vulnerability due to large
Accept-Language header values (CVE-2023-23969)

* Django: Potential denial-of-service vulnerability when uploading multiple
files (CVE-2023-24580)

* Future: Remote attackers can cause denial-of-service using crafted
Set-Cookie header from a malicious web server (CVE-2022-40899)

This RHUI update fixes the following bugs:

* Previously, when the `rhui-services-restart` command was run, it
restarted only those `pulpcore-worker` services that were already running
and ignored services that were not running. With this update, the
`rhui-services-restart` command restarts all `pulpcore-worker` services
irrespective of their status.

* Previously, the `rhui-manager status` command returned an incorrect exit
status when there was a problem. With this update, the issue has been fixed
and the command now returns the correct exit status. (BZ#2174633)

* Previously, `rhui-installer` ignored the `--rhua-mount-options` parameter
and only used the read-write (`rw`) mount option to set up RHUI remote
share. With this update, `rhui-installer` uses the `--rhua-mount-options`
parameter. However, `rhui-installer` still uses the read-write (`rw`)
option by default. (BZ#2174316)

* Previously, when you ran `rhui-installer`, it rewrote the
`/etc/rhui/rhui-tools.conf` file, resetting all container-related settings.
With this update, the command saves the container-related settings from the
`/etc/rhui/rhui-tools.conf` file and restores them after the file is

This RHUI update introduces the following enhancements:

* The `rhui-installer` command now supports the `--pulp-workers _COUNT_`
argument. RHUI administrators can use this argument to set up a number of
Pulp workers. (BZ#2036408)

* You can now configure CDS nodes to never fetch non-exported content from
the RHUA node. To configure the node, rerun the `rhui-installer` command
with the `--fetch-missing-symlinks False` argument, and then apply this
configuration to all CDS nodes. If you configure your CDS nodes this way,
ensure that the content has been exported before RHUI clients start
consuming it. (BZ#2084950)

* Support for containers in RHUI is disabled by default. If you want to use
containers, you must manually enable container support by rerunning
`rhui-installer` with the `--container-support-enabled True` argument, and
then applying this configuration to all CDS nodes.

* Transport Layer Security (TLS) 1.3 and HTTP Strict Transport Security
(HSTS) is now enabled in RHUI. This update improves overall RHUI security
and also removes unsafe ciphers from the `nginx` configuration on CDS
nodes. (BZ#1887903)

* You can now remove packages from custom repositories using the text user
interface (TUI) as well as the command line. For more information, see the
release notes or the product documentation.(BZ#2165444)

* You can now set up the Alternate Content Source (ACS) configuration in
RHUI to quickly synchronize new repositories and content by substituting
remote content with matching content that is available locally or
geographically closer to your instance of RHUI. For more information, see
the release notes or the product documentation. (BZ#2001087)

* You can now use a custom prefix, or no prefix at all, when naming your
RHUI repositories. You can change the prefix by rerunning the
`rhui-installer` command with the `--client-repo-prefix ` argument.
To remove the prefix entirely, use two quotation marks ("") as the
`` parameter. For more information, see the release notes or the
product documentation.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

5. Bugs fixed (

2036408 - Change default pulp workers if RHUA has lower cpu count
2084950 - RHUIv4 does not function when RHUA is unavailable
2165444 - [RFE] No way to remove specific packages in custom repositories
2165866 - CVE-2022-40899 python-future: remote attackers can cause denial of service via crafted Set-Cookie header from malicious web server
2166457 - CVE-2023-23969 python-django: Potential denial-of-service via Accept-Language headers
2169402 - CVE-2023-24580 python-django: Potential denial-of-service vulnerability in file uploads
2174316 - rhui-installer ignores --rhua-mount-options option in rhui4.
2174633 - 'rhui-manager status' returns an exist code 0 even if pulp-workers are down

6. JIRA issues fixed (

RHUI-134 - [RFE] Satellite w/ Pulp 3 ACS: Generate a cert, headers, a base URL, and subpaths for a list of repositories
RHUI-148 - Enable remove RPM functionality from custom repo
RHUI-199 - Remove unsafe ciphers from default setup of NGinx
RHUI-230 - Bug 1887903 - TLS testing tool on CDS certificate
RHUI-342 - Make client repo ID prefix optional
RHUI-354 - Container support should be "opt-in" and not enabled by default
RHUI-362 - rhui-installer --rerun wipes container registry configuration
RHUI-368 - Update Django to address CVE-2023-24580 python-django: Potential denial-of-service vulnerability in file uploads
RHUI-370 - rhui-installer ignores --rhua-mount-options option in rhui4
RHUI-371 - 'rhui-manager status' returns an exist code 0 even if pulp-workers are down
RHUI-372 - Allow CDS to be configured without requesting RHUA creating missing symlinks.
RHUI-376 - rhui-services-restart doesn't start workers if they're down
RHUI-377 - Create a rhui-installer argument to change the number of pulp-workers

7. Package List:

RHUI 4 for RHEL 8:



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8. References:

9. Contact:

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