Your message dated Fri, 20 Jan 2017 11:33:48 +0000
with message-id <[email protected]>
and subject line Bug#845177: fixed in bash 4.4-3
has caused the Debian Bug report #845177,
regarding clear_console: assumes VT switch clears scrollback
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
845177: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845177
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: bash
Version: 4.4-2
Severity: normal
Hi!
The bash package includes a Debian-specific program, "clear_console". It
clears the screen then naively tries to nuke the scrollback by briefly
switching to another virtual console then switching back. This worked only
accidentally thanks to a quirk of the Linux console -- no other tabbed/etc
terminal I know loses scrollback on switch. And now, Manuel Schölling has
submitted a patch that eliminates this loss.
That patch comes with a config option that defaults to "n" precisely because
of Debian's clear_console, but anyone who enables it won't have his
scrollback cleared, with possible privacy loss or worse.
Since Linux 2.6.39, you can print "\e[3J" to securely erase the current
console. While it is Linux console specific, terminals are supposed to
silently ignore unknown well-formed commands -- I've verified that FreeBSD,
Hurd and Solaris consoles (ie, kernels with a Debian port) do so; and even
if some ill-behaved terminal shows junk, you can clear the screen the old
way just to be sure.
-- System Information:
Debian Release: stretch/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable'), (500, 'testing'),
(150, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.8.9+ (SMP w/6 CPU cores)
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages bash depends on:
ii base-files 9.6
ii dash 0.5.8-2.3
ii debianutils 4.8.1
ii libc6 2.24-5
ii libtinfo5 6.0+20160917-1
Versions of packages bash recommends:
pn bash-completion <none>
Versions of packages bash suggests:
pn bash-doc <none>
-- no debconf information
--- End Message ---
--- Begin Message ---
Source: bash
Source-Version: 4.4-3
We believe that the bug you reported is fixed in the latest version of
bash, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Matthias Klose <[email protected]> (supplier of updated bash package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Format: 1.8
Date: Fri, 20 Jan 2017 11:52:59 +0100
Source: bash
Binary: bash bash-static bash-builtins bash-doc
Architecture: source
Version: 4.4-3
Distribution: unstable
Urgency: medium
Maintainer: Matthias Klose <[email protected]>
Changed-By: Matthias Klose <[email protected]>
Description:
bash - GNU Bourne Again SHell
bash-builtins - Bash loadable builtins - headers & examples
bash-doc - Documentation and examples for the GNU Bourne Again SHell
bash-static - GNU Bourne Again SHell (static version)
Closes: 794588 838201 845177
Changes:
bash (4.4-3) unstable; urgency=medium
.
* Apply upstream patches 006 - 007.
* clear_console: Securely erase the current console. Closes: #845177.
* Mark locales and time build dependencies with <!nocheck>.
Closes: #838201.
* Don't configure with --with-curses. Closes: #794588.
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Files:
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