Bug#481295: Preconfiguring of openssh-servers fails due to mount option "noexec" on /tmp
Package: openssh-server
Version: 1:4.3p2-9etch1
Severity: important
Just updated openssh-* and got this message:
[...]
Preconfiguring packages ...
Can't exec "/tmp/openssh-server.config.35001": Permission denied at /usr/share/perl/5.8/IPC/Open3.pm line 168.
open2: exec of /tmp/openssh-server.config.35001 configure 1:4.3p2-9 failed at /usr/share/perl5/Debconf/ConfModule.pm line 58
openssh-server failed to preconfigure, with exit status 9
[...]
This error comes due to mount options for /tmp:
/dev/md1 on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/mapper/vg00-home_lv on /home type ext3 (rw,nosuid,nodev,acl,usrquota,grpquota)
/dev/mapper/vg00-tmp_lv on /tmp type ext3 (rw,noexec,nosuid,nodev)
/dev/mapper/vg00-usr_lv on /usr type ext3 (rw,nodev)
/dev/mapper/vg00-var_lv on /var type ext3 (rw,nosuid,nodev)
/dev/mapper/vg00-varlog_lv on /var/log type ext3 (rw,noexec,nosuid,nodev)
/dev/mapper/vg00-varspoolsquid_lv on /var/spool/squid type ext3 (rw,noexec,nosuid,nodev)
/dev/mapper/vg00-vartmp_lv on /var/tmp type ext3 (rw,noexec,nosuid,nodev)
I believe it is legal to mount /tmp without binary exec support for
security improvement. Executing scripts from /tmp is IMHO a very bad
idea.
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.24.3
Locale: LANG=C, LC_CTYPE=de_DE@euro (charmap=ISO-8859-15)
Versions of packages openssh-server depends on:
ii add 3.102 Add and remove users and groups
ii deb 1.5.11etch1 Debian configuration management sy
ii dpk 1.13.25 package maintenance system for Deb
ii lib 2.3.6.ds1-13etch5 GNU C Library: Shared libraries
ii lib 1.39+1.40-WIP-2006.11.14+dfsg-2etch1 common error description library
ii lib 1.4.4-7etch5 MIT Kerberos runtime libraries
ii lib 0.79-5 Pluggable Authentication Modules f
ii lib 0.79-5 Runtime support for the PAM librar
ii lib 0.79-5 Pluggable Authentication Modules l
ii lib 1.32-3 SELinux shared libraries
ii lib 0.9.8c-4etch3 SSL shared libraries
ii lib 7.6.dbs-13 Wietse Venema's TCP wrappers libra
ii ope 0.1.1 list of blacklisted OpenSSH RSA an
ii ope 1:4.3p2-9etch1 Secure shell client, an rlogin/rsh
ii zli 1:1.2.3-13 compression library - runtime
openssh-server recommends no packages.
-- debconf information excluded
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