Package: vim-tiny Version: 2:7.3.547-5 Severity: normal The act of editing a file with vim.tiny appears to wipe out any ACL set on the file, and potentially to modify the group or other permissions:
0 dkg@pip:~$ getfacl test.txt # file: test.txt # owner: dkg # group: dkg user::rw- user:wt215:r-- group::--- mask::r-- other::--- 0 dkg@pip:~$ vim.tiny test.txt ### make a small edit, then :wq 0 dkg@pip:~$ getfacl test.txt # file: test.txt # owner: dkg # group: dkg user::rw- group::r-- other::--- 0 dkg@pip:~$ This lead to an information disclosure vulnerability. It's also pretty annoying for a user who has tried to use ACLs to grant permissions to a file and had them stripped away silently. fwiw, emacs seems to do the same thing (see http://bugs.debian.org/693461). --dkg -- Package-specific info: --- real paths of main Vim binaries --- /usr/bin/vi is /usr/bin/vim.tiny /usr/bin/vim is /usr/bin/vim.tiny -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (500, 'testing'), (200, 'unstable'), (1, 'experimental') Architecture: i386 (i686) Foreign Architectures: powerpc Kernel: Linux 3.2.0-4-686-pae (SMP w/1 CPU core) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages vim-tiny depends on: ii libc6 2.13-35 ii libselinux1 2.1.9-5 ii libtinfo5 5.9-10 ii vim-common 2:7.3.547-5 vim-tiny recommends no packages. Versions of packages vim-tiny suggests: pn indent <none> -- no debconf information -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
