A mirrorlist-server security update has been released for Fedora 38.

SECURITY: Fedora 38 Update: mirrorlist-server-3.0.6-6.fc38

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Fedora Update Notification
FEDORA-2023-cc21019773
2023-05-07 01:19:58.787245
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Name : mirrorlist-server
Product : Fedora 38
Version : 3.0.6
Release : 6.fc38
URL :   https://github.com/adrianreber/mirrorlist-server
Summary : Mirrorlist Server
Description :
The mirrorlist-server uses the data created by `MirrorManager2
(  https://github.com/fedora-infra/mirrormanager2) `_ to answer client request for
the "best" mirror.

This implementation of the mirrorlist-server is written in Rust. The original
version of the mirrorlist-server was part of the MirrorManager2 repository and
it is implemented using Python. While moving from Python2 to Python3 one of
the problems was that the data exchange format (Python Pickle) did not support
running the MirrorManager2 backend with Python2 and the mirrorlist frontend
with Python3. To have a Pickle independent data exchange format protobuf was
introduced. The first try to use protobuf in the python mirrorlist
implementation required a lot more memory than the Pickle based implementation
(3.5GB instead of 1.1GB). That is one of the reasons a new mirrorlist-server
implementation was needed.

Another reason to rewrite the mirrorlist-server is its architecture. The
Python based version requires the Apache HTTP server or something that can
run the included wsgi. The wsgi talks over a socket to the actual
mirrorlist-server. In Fedora's MirrorManager2 instance this runs in a container
which runs behind HAProxy. This implementation in Rust directly uses a HTTP
library to reduce the number of involved components.

In addition to being simpler this implementation also requires less memory
than the Python version.

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Update Information:

Recent updates for the `tokio`, `h2`, and `openssl` crates addressed some
(potential or confirmed) security or soundness issues: - `tokio`:
[RUSTSEC-2023-0005](  https://rustsec.org/advisories/RUSTSEC-2023-0005.html) -
`h2`: [RUSTSEC-2023-0034](  https://rustsec.org/advisories/RUSTSEC-2023-0034.html)
/ [CVE-2023-26964](  https://nvd.nist.gov/vuln/detail/CVE-2023-26964) - `openssl`:
[RUSTSEC-2023-0022](  https://rustsec.org/advisories/RUSTSEC-2023-0022.html),
[RUSTSEC-2023-0023](  https://rustsec.org/advisories/RUSTSEC-2023-0023.html),
[RUSTSEC-2023-0024](  https://rustsec.org/advisories/RUSTSEC-2023-0024.html) This
update contains rebuilds of all affected applications against the latest
versions of these crates, which have addressed all linked issues.
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ChangeLog:

* Wed May 3 2023 Fabio Valentini - 3.0.6-6
- Rebuild with h2 >= v0.3.18 and tokio >= v1.24.2 (RUSTSEC-2023-{0005,0034})
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2023-cc21019773' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys
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