Bug#839220: xterm: Using allowC1Printable (-k8) can disable UTF-8 support
Package: xterm
Version: 326-1
Severity: important
If allowC1Printable (-k8 option) is used, then UTF-8 support can be
disabled if some escape sequence (e.g. from a binary file) is sent,
which can make the terminal unusable. Example:
xterm -k8 -hold -e printf "\x1b\xa5@\xc3\xa9\n"
which shows "é" instead of "é". And with Ctrl + right click, one can
see that "UTF-8 Encoding" is no longer set.
The xterm(1) man page just says:
-k8 This option sets the allowC1Printable resource. When
allowC1Printable is set, xterm overrides the mapping of C1
control characters (code 128-159) to treat them as printable.
So, this option should be regarded as safe.
-- System Information:
Debian Release: stretch/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.7.0-1-amd64 (SMP w/12 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages xterm depends on:
ii libc6 2.24-3
ii libfontconfig1 2.11.0-6.7
ii libice6 2:1.0.9-1+b1
ii libtinfo5 6.0+20160917-1
ii libutempter0 1.1.6-3
ii libx11-6 2:1.6.3-1
ii libxaw7 2:1.0.13-1
ii libxft2 2.3.2-1
ii libxinerama1 2:1.1.3-1+b1
ii libxmu6 2:1.1.2-2
ii libxpm4 1:3.5.11-1+b1
ii libxt6 1:1.1.5-1
ii xbitmaps 1.1.1-2
Versions of packages xterm recommends:
ii x11-utils 7.7+3
Versions of packages xterm suggests:
pn xfonts-cyrillic <none>
-- no debconf information
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