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Fedora Update Notification
FEDORA-2022-a9349c1299
2022-03-30 01:27:23.335121
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Name        : unrealircd
Product     : Fedora 35
Version     : 6.0.2
Release     : 1.fc35
URL         : https://www.unrealircd.org/
Summary     : Open Source IRC server
Description :
UnrealIRCd is an Open Source IRC server based on the branch of IRCu called
Dreamforge, formerly used by the DALnet IRC network. Since the beginning of
development on UnrealIRCd in May of 1999, it has become a highly advanced
IRCd with a strong focus on modularity, an advanced and highly configurable
configuration file. Key features include SSL/TLS, cloaking, advanced anti-
flood and anti-spam systems, swear filtering and module support.

--------------------------------------------------------------------------------
Update Information:

# UnrealIRCd 6.0.2  UnrealIRCd 6.0.2 comes with several nice feature
enhancements along with some fixes. It also includes a fix for a crash bug that
can be triggered by ordinary users.  ## Fixes    * Fix crash that can be
triggered by regular users if you have any `deny dcc` blocks in the config or
any spamfilters with the `d` (DCC) target.   * Fix infinite hang on "Loading
IRCd configuration" if DNS is not working. For example if the 1st DNS server in
`/etc/resolv.conf` is down or refusing requests.   * Some `MODE` server-to-
server commands were missing a timestamp at the end, even though this is
mandatory for modes coming from a server.   * The
[channeldb](https://www.unrealircd.org/docs/Set_block#set::channeldb) module now
converts letter extbans to named extbans (e.g. `~a` to `~account`). Previously
it did not, which caused letter extbans to appear in the banlist. Later on, when
linking servers, this would cause duplicate entries to appear as well, with both
the old and new format. The extbans were still effective though, so this is
mostly a visual `+b`/`+e`/`+I` list issue.   * Some [Extended Server
Bans](https://www.unrealircd.org/docs/Extended_server_bans) were not working
correctly for WEBIRC proxies. In particular, a server ban or exempt (ELINE) on
`~country:XX` was only checked against the WEBIRC proxy.  ## Enhancements    *
Support for [logging to a
channel](https://www.unrealircd.org/docs/Log_block#Logging_to_a_channel).
Similar to snomasks but then for channels.   * Command line interface changes:
* The CLI tool now communicates to the running UnrealIRCd process via a UNIX
socket to send commands and retrieve output.     * The command `unrealircdctl
rehash` will now show the rehash output, including warnings and errors, and
return a proper exit code.     * The same for `unrealircdctl reloadtls`     *
The command `unrealircdctl status` to show if UnrealIRCd is running, the
version, channel and user count, ..     * The command `unrealircdctl
genlinkblock` is now
[documented](https://www.unrealircd.org/docs/Linking_servers_(genlinkblock)) and
is referred to from the [Linking servers
tutorial](https://www.unrealircd.org/docs/Tutorial:_Linking_servers).   * New
option [set::server-notice-show-
event](https://www.unrealircd.org/docs/Set_block#set::server-notice-show-event)
which can be set to `no` to hide the event information (e.g.
`connect.LOCAL_CLIENT_CONNECT`) in server notices. This can be overridden per-
oper in the [Oper block](https://www.unrealircd.org/docs/Oper_block) via
`oper::server-notice-show-event`.   * Support for IRC over UNIX sockets (on the
same machine), if you specify a file in the [listen
block](https://www.unrealircd.org/docs/Listen_block) instead of an ip/port. This
probably won't be used much, but the option is there. Users will show up with a
host of `localhost` and IP `127.0.0.1` to keep things simple.   * The `MAP`
command now shows percentages of users   * Add `WHO` option to search clients by
time connected (e.g. `WHO <300 t` to search for less than 300 seconds)   * Rate
limiting of `MODE nick -x` and `-t` via new `vhost-flood` option in [set::anti-
flood block](https://www.unrealircd.org/docs/Anti-flood_settings).  ## Changes
* Update Russian `help.ru.conf`.  ## Protocol    * `SVSMODE #chan -b nick` will
now correctly remove extbans that prevent `nick` from joining. This fixes a bug
where it would remove too much (for `~time`) or not remove extbans (most other
extbans, e.g. `~account`). `SVSMODE #chan -b` has also been fixed accordingly
(remove all bans preventing joins). Note that all these commands do not remove
bans that do not affect joins, such as `~quiet` or `~text`.   # UnrealIRCd
6.0.1.1  ## Fixes    * In 6.0.1.1: extended bans were not properly synced
between U5 and U6. This caused missing extended bans on the U5 side (MODE was
working OK, this only happened when linking servers)   * Text extbans did not
have any effect (`+b ~text:censor:*badword*`)   * Timed bans were not expiring
if all servers on the network were on U6   * Channel mode `+f` could place a
timed extban with `~t` instead of `~time`   * Crash when unloading any of the
vhoaq modules at runtime   * Some log messages being wrong (`CHGIDENT`,
`CHGNAME`)   * Remove confusing high cpu load warning  ## Enhancements    *
Error on unknown snomask in `set::snomask-on-oper` and `oper::snomask`.   * TKL
add/remove/expire messages now show `[duration: 60m]` instead of the `[expires:
ZZZ GMT]` string since that is what people are more interested in and is not
affected by time zones. The format in all the 3 notices is also consistent now.
# UnrealIRCd 6.0.0 Many thanks (by upstream) to k4be for his help during
development, other contributors for their feedback and patches, the people who
tested the beta's and release candidates, translators and everyone else who made
this release happen!  ## Summary UnrealIRCd 6 comes with a completely redone
logging system (with optional JSON support), named extended bans, four new IRCv3
features, geoip support and remote includes support built-in.  Additionally,
things are more customizable such as what gets sent to which snomask. All the
+vhoaq channel modes are now modular as well, handy for admins who don't want or
need halfops or `+q`/`+a`. For `WHOIS` it is now customizable in detail who gets
to see what.  A summary of the features is available at [What's new in
UnrealIRCd 6](https://www.unrealircd.org/docs/What's_new_in_UnrealIRCd_6). For
complete information, continue reading the release notes below. The sections
below contain all the details.  ## Upgrading from UnrealIRCd 5  When upgrading
from UnrealIRCd 5 to 6 then you can use your existing configuration and files.
There's no need to start from scratch. However, you will need to make a few
updates, see [Upgrading from 5.x to
6.x](https://www.unrealircd.org/docs/Upgrading_from_5.x).  ## Enhancements    *
Completely new log system and snomasks overhaul     * Both logging and snomask
sending is done by a single logging function     * Support for [JSON
logging](https://www.unrealircd.org/docs/JSON_logging) to disk, instead of the
default text format. JSON logging adds lot of detail to log messages and
consistently expands things like *client* with properties like *hostname*,
*connected_since*, *reputation*, *modes*, etc.     * The JSON data is also sent
to all IRCOps who request the `unrealircd.org/json-log` capability. The data is
then sent in a message-tag called `unrealircd.org/json-log`. This makes it ideal
for client scripts and bots to do automated things.     * A new style `log { }`
block is used to map what log messages should be logged to disk, and which ones
should be sent to snomasks.     * The default logging to snomask configuration
is in `snomasks.default.conf` which everyone should include from
unrealircd.conf. That is, unless you wish to completely reconfigure which
logging goes to which snomasks yourself, which is also an option now.     * See
[Snomasks](https://www.unrealircd.org/docs/Snomasks#UnrealIRCd_6) on the new
snomasks - lots of letters changed!     * See [FAQ: Converting log { }
block](https://www.unrealircd.org/docs/FAQ#old-log-block) on how to change your
existing `log { }` blocks for disk logging.     * We now have a consistent log
format and log messages can be multiline.     * Colors are enabled by default in
snomask server notices, these can be disabled via [set::server-notice-
colors](https://www.unrealircd.org/docs/Set_block#set::server-notice-colors) and
also in [oper::server-notice-colors](https://www.unrealircd.org/docs/Oper_block)
* Support for [logging to a
channel](https://www.unrealircd.org/docs/Log_block#Logging_to_a_channel).
Similar to snomasks but then for channels. *Requires UnrealIRCd 6.0.2 or later*
* Almost all channel modes are modularized     * Only the three list modes
(`+b`/`+e`/`+I`) are still in the core     * The five level modes (`+vhoaq`) are
now also modular. They are all loaded by default but you can blacklist one or
more if you don't want them. For example to disable halfop: `blacklist-module
chanmodes/halfop`;     * Support for compiling without `PREFIX_AQ` has been
removed because people often confused it with disabling `+a`/`+q` which is
something different.   * Named extended bans     * Extbans now no longer show up
with single letters but with names. For example `+b ~c:#channel` is now `+b
~channel:#channel`.     * Extbans are automatically converted from the old to
the new style, both from clients and from/to older UnrealIRCd 5 servers. The
auto-conversion also works fine with complex extbans such as `+b
~t:5:~q:[email protected]` to `+b ~time:5:~quiet:[email protected]`.   * New IRCv3
features     * [MONITOR](https://ircv3.net/specs/extensions/monitor.html): an
alternative for `WATCH` to monitor other users ("notify list").     *
draft/extended-monitor: extensions for `MONITOR`, still in draft.     * [invite-
notify](https://ircv3.net/specs/extensions/invite-notify): report channel
invites to other chanops (or users) in a machine readable way.     *
[setname](https://ircv3.net/specs/extensions/setname.html): notify clients about
realname (gecos) changes.   * GeoIP lookups can be configured     * This shows
the country of the user to IRCOps in `WHOIS` and in the "user connecting" line.
* By downstream default, no module is loaded.     * Options are the
`geoip_maxmind` and `geoip_csv` modules.   * Configure `WHOIS` output in a very
precise way     * You can now decide which fields (e.g. modes, geo, certfp, etc)
you want to expose to who (everyone, self, oper).     * See [set::whois-
details](https://www.unrealircd.org/docs/Set_block#set::whois-details) for more
details.   * We now ship with 3 cloaking modules and you need to load 1
explicitly via `loadmodule`:     * `cloak_sha256`: the recommended module for
anyone starting a *new* network. It uses the SHA256 algorithm under the hood.
* `cloak_md5`: for anyone who is upgrading their network from older UnrealIRCd
versions. Use this so your cloaked host bans remain the same.     *
`cloak_none`: if you don't want any cloaking, not even as an option to your
users (rare)   * Remote includes are now supported everywhere in the config
file.     * Support for `https://` fetching is now always available, even if you
don't compile with libcurl support.     * Anywhere an URL is encountered on its
own, it will be fetched automatically. This makes it work not only for includes
and motd (which was already supported) but also for any other file.     * To
prevent something from being interpreted as a remote include URL you can use
'value' instead of "value".   * Invite notification: set `set::normal-user-
invite-notification yes;` to make chanops receive information about normal users
inviting someone to their channel. The name of this setting may change in a
later version.   * Websocket: you can add a `listen::options::websocket::forward
1.2.3.4` option to make unrealircd accept a `Forwarded` (RFC 7239) header from a
reverse proxy connecting from `1.2.3.4` (plans to accept legacy `X-Forwarded-
For` and a proxy password too). This feature is currently experimental.  ##
Changes   * TLS cipher and some other information is now visible for remote
clients as well, also in `[secure: xyz]` connect line.   * Error messages in
remote includes use the url instead of a temporary file   * Downgrading from
UnrealIRCd 6 is only supported down to 5.2.0 (so not lower like 5.0.x). If this
is a problem then make a copy of your db files (e.g.: `reputation.db`).  ##
Removed   * `/REHASH -motd` and `-opermotd` are gone, just use `/REHASH`  ##
Breaking changes  See https://www.unrealircd.org/docs/Upgrading_from_5.x, but in
short:  You can use the unrealircd.conf from UnrealIRCd 5, but you need to make
a few changes:    * You need to add `include "snomasks.default.conf"`;   * You
need to load a cloaking module explicitly. Assuming you already have a network
then add: `loadmodule "cloak_md5"`;   * The log block(s) need to be updated, use
something like: ``` log {         source {             !debug;             all;
}         destination {             file "ircd.log" { maxsize 100M; }         }
} ```  ## Server protocol   * When multiple related `SJOIN` messages are
generated for the same channel then we now only send the current channel modes
(e.g. `+sntk key`) in the first SJOIN and not in the other ones as they are
unneeded for the immediate followup SJOINs, they waste unnecessary bytes and
CPU. Such messages may be generated when syncing a channel that has dozens of
users and/or bans/exempts/invexes. Ideally this should not need any changes in
other software, since we already supported such messages in the past and code
for handling it exists way back to 3.2.x, but you better check to be sure!   *
If you send `PROTOCTL NEXTBANS` then you will receive extended bans with Named
EXTended BANs instead of letters (e.g.: `+b ~account:xyz`), otherwise you
receive them with letters (e.g.: `+b ~a:xyz`).   * Some ModData of users is
(also) communicated in the UID message while syncing using a message tag that
only appears in server-to-server traffic, `s2s-md/moddataname=value`. Thus, data
such as operinfo, tls cipher, geoip, certfp, sasl and webirc is communicated at
the same time as when a remote connection is added. This makes it that a
"connecting from" server notice can include all this information and also so
code can make an immediate decission on what to do with the user in hooks.
ModData modules need to set `mreq.sync = MODDATA_SYNC_EARLY`; if they want this.
Servers of course need to enable `MTAGS` in `PROTOCTL` to see this.   * The
`SLOG` command is used to broadcast logging messages. This is done for
`log::destination` remote, as used in doc/conf/snomasks.default.conf, for
example for link errors, oper ups, flood messages, etc. It also includes all
JSON data in a message tag when `PROTOCTL MTAGS` is used.   * Bounced modes are
gone: these were MODEs that started with a `&` which servers were to act on with
reversed logic (add becoming remove and vice versa) and never to send something
back to that server. In practice this was almost never used and complicated the
code (way) too much.  ## Client protocol   * Extended bans now have names
instead of letters. If a client sends the old format with letters (e.g. `+b
~a:XYZ`) then the server will convert it to the new format with names (e.g.: `+b
~account:XYZ`)   * Support for `MONITOR` and the other IRCv3 features (see
*Enhancements*)
--------------------------------------------------------------------------------
ChangeLog:

* Mon Mar 21 2022 Robert Scheck  6.0.2-1
- Upgrade to 6.0.2 (#2038245)
* Sat Jan 22 2022 Fedora Release Engineering  - 6.0.1.1-2
- Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
* Fri Dec 31 2021 Robert Scheck  6.0.1.1-1
- Upgrade to 6.0.1.1 (#2033813)
* Thu Dec 30 2021 Robert Scheck  6.0.1-1
- Upgrade to 6.0.1 (#2033813)
--------------------------------------------------------------------------------
References:

  [ 1 ] Bug #2048669 - unrealircd: Denial of service when a certain command is sent
        https://bugzilla.redhat.com/show_bug.cgi?id=2048669
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2022-a9349c1299' at the command
line. For more information, refer to the dnf documentation available at
https://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

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