Articles / Debian: local root in wmtv

Debian: local root in wmtv

Nicolas Boullis found a nasty security problem in the wmtv (a dockable video4linux tv player for windowmaker) package as distributed in Debian GNU/Linux 2.2. wmtv can optionally run a command if you double-click on the tv window. This command can be specified using the -e command-line option. However since wmtv is installed suid root this command was also run as root, which gives local users a very simple way to get root access. Fixed packages are available from security.debian.org.
-----BEGIN PGP SIGNED MESSAGE-----

- ------------------------------------------------------------------------
Debian Security Advisory DSA-092-1                   security@debian.org
http://www.debian.org/security/                         Wichert Akkerman
December  6, 2001
- ------------------------------------------------------------------------


Package        : wmtv
Problem type   : local root exploit
Debian-specific: no

Nicolas Boullis found a nasty security problem in the wmtv (a
dockable video4linux tv player for windowmaker) package as
distributed in Debian GNU/Linux 2.2.

wmtv can optionally run a command if you double-click on the tv
window. This command can be specified using the -e command-line
option. However since wmtv is installed suid root this command
was also run as root, which gives local users a very simple way
to get root access.

This has been fixed in version 0.6.5-2potato1 by dropping root
privileges before executing the command. We recommend that you
upgrade your wmtv package immediately.


wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.


Debian GNU/Linux 2.2 alias potato
- ---------------------------------

  Potato was released for alpha, arm, i386, m68k, powerpc and sparc.

  Source archives:
    http://security.debian.org/dists/stable/updates/main/source/wmtv_0.6.5-2potato1.diff.gz
      MD5 checksum: 71436864099e31a54191828eba1a5af1
    http://security.debian.org/dists/stable/updates/main/source/wmtv_0.6.5-2potato1.dsc
      MD5 checksum: fcfed7fae275bcd74f135db0fb315e27
    http://security.debian.org/dists/stable/updates/main/source/wmtv_0.6.5.orig.tar.gz
      MD5 checksum: 2ee18b3f1261137e8772d4f6a9dd0031

  Alpha architecture:
    http://security.debian.org/dists/stable/updates/main/binary-alpha/wmtv_0.6.5-2potato1_alpha.deb
      MD5 checksum: da07aa390b028396000c8c8ebf180c44

  ARM architecture:
    http://security.debian.org/dists/stable/updates/main/binary-arm/wmtv_0.6.5-2potato1_arm.deb
      MD5 checksum: b0ee729c7de7dfb2b3e1c4c7a8f37e69

  Intel IA-32 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-i386/wmtv_0.6.5-2potato1_i386.deb
      MD5 checksum: fd3ce69d983ae4b316114628c7c5fc74

  Motorola 680x0 architecture:
    http://security.debian.org/dists/stable/updates/main/binary-m68k/wmtv_0.6.5-2potato1_m68k.deb
      MD5 checksum: 774a7f254a1a1f27cd7a03f66ac11308

  PowerPC architecture:
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/wmtv_0.6.5-2potato1_powerpc.deb
      MD5 checksum: 3b98c87d44c9570e4001ceec82d832be

  Sun Sparc architecture:
    http://security.debian.org/dists/stable/updates/main/binary-sparc/wmtv_0.6.5-2potato1_sparc.deb
      MD5 checksum: 7ecfd9e694e3b22b101c52c7f8c4f627

  These packages will be moved into the stable distribution on its next
  revision.

For not yet released architectures please refer to the appropriate
directory ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .

- -- 
- ----------------------------------------------------------------------------
apt-get: deb http://security.debian.org/ stable/updates main
dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org

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