Your message dated Sat, 16 Nov 2024 15:38:57 +0100
with message-id <[email protected]>
and subject line Re: Bug#1087496: util-linux: mesg, write and wall unclean 
status
has caused the Debian Bug report #1087496,
regarding util-linux: mesg, write and wall unclean status
to be marked as done.

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If this is not the case it is now your responsibility to reopen the
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1087496: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1087496
Debian Bug Tracking System
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Source: util-linux
Version: 1:2.40.2-11
Severity: important

In /usr/share/doc/util-linux/NEWS.Debian.gz:

util-linux (2.40.2-11) unstable; urgency=medium

  * The mesg(1) and write(1) programs are no longer provided.
    It is believed chatting between users is nowadays done using more
    secure facilities.

 -- Chris Hofstaedtler <[email protected]>  Wed, 13 Nov 2024 12:58:06 +0100

There are two issues:

1. mesg(1) was used to control where other users could display messages
in terminals. While write(1) has been removed, there may be other ways
to write to a terminal: one just needs to write to the terminal device.
If the default is not secure (and it seems that it isn't, because
"mesg n" was removing the write permission for the group), this is
potentially bad.

2. wall(1) has not been removed. It seems that it was no longer working,
and still isn't. The latest changelog about "wall" says:

  * No longer install wall, write setgid tty

on 27 Mar 2024, but this is not true. It is still installed, and so is
its man page, which still references mesg(1) and write(1), though they
are no longer installed.

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable-debug
  APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 
'stable-security'), (500, 'stable-debug'), (500, 'proposed-updates-debug'), 
(500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 6.7.12-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

-- no debconf information

-- 
Vincent Lefèvre <[email protected]> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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--- Begin Message ---
As said before, I see no bug here.

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