Your message dated Sat, 15 Sep 2007 14:29:17 -0400
with message-id <[EMAIL PROTECTED]>
and subject line security bug in cp
has caused the attached Bug report to be marked as done.
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--- Begin Message ---
Package: coreutils
Version: 5.97-5.3
Severity: normal
cp -p doesn't update the group on a file before writing data
into the target. That means that during the copy, users you
didn't intend to be able to read the file can read the file.
For example:
| Running running Debian GNU/Linux 4.0 (etch) on i686.
|
| techhouse-0:/scratch/soren=> ls -l spool.16Aug07
| -rw-r----- 1 soren adm 43105807 2007-08-15 21:17 spool.16Aug07
| techhouse-0:/scratch/soren=> cp -p spool.16Aug07 whenadm
| [3] + Stopped cp -p spool.16Aug07 whenadm
| techhouse-0:/scratch/soren=> ls -l whenadm
| -rw-r----- 1 soren ssl-cert 16728064 2007-08-16 21:41 whenadm
| [huh, why can ssl-cert users (26 of them) read my file?]
| [oddly my primary GID is ssl-cert; I think that used to be 'users' ;p]
| techhouse-0:/scratch/soren=> fg
| cp -p spool.16Aug07 whenadm
| `[now that it's finished]
| techhouse-0:/scratch/soren=> ls -l whenadm
| -rw-r----- 1 soren adm 43105807 2007-08-15 21:17 whenadm
| [and finally it's right]
This bug is fixed in upstream (6.9), but the latest version
of the Debian package is 5.97.
http://lists.gnu.org/archive/html/bug-coreutils/2007-08/msg00106.html
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (990, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Versions of packages coreutils depends on:
ii libacl1 2.2.41-1 Access control list shared library
ii libc6 2.3.6.ds1-13 GNU C Library: Shared libraries
ii libselinux1 1.32-3 SELinux shared libraries
coreutils recommends no packages.
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 6.10~0
Fixed in current version in experimental.
--
Michael Stone
--- End Message ---
