Linux Security
Linux Security
Linux Security

Debian: 'modutils' vulnerability

Date 20 Nov 2000
2732
Posted By LinuxSecurity Advisories
Sebastian Krahmer found a problem in the modprobe utility that could beexploited by local users to run arbitrary commands as root if themachine is running a kernel with kmod enabled.

- ------------------------------------------------------------------------
Debian Security Advisory                             This email address is being protected from spambots. You need JavaScript enabled to view it. 
https://www.debian.org/security/                         Wichert Akkerman
November 20, 2000
- ------------------------------------------------------------------------


Package: modutils
Vulnerability: local exploit
Debian-specific: no

Sebastian Krahmer found a problem in the modprobe utility that could be
exploited by local users to run arbitrary commands as root if the
machine is running a kernel with kmod enabled.

The kmod kernel feature allows the kernel to dynamically load kernel
modules if functionality is required that is not present in the running
kernel. It does this by invoking the modprobe command with the requested
module as parameter. This parameter can be influenced by users, for
example by opening a currently non-existing files on a devfs filesystem,
or trying to access a non-existing network interface. Since modprobe
did not properly escape shell meta-characters when calling external
commands or check if the last parameters was an option instead of a
modulename, users can cause it to run arbitrary commands.

This has been fixed in version 2.3.11-12 and we recommend that you upgrade
your modutils package immediately.

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

You may use an automated update by adding the resources from the
footer to the proper configuration.


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

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

  Source archives:
    
https://security.debian.org/dists/stable/updates/main/source/modutils_2.3.11-12.diff.gz
      MD5 checksum: 2c9590c014d74728c0c0aca54768a688
    
https://security.debian.org/dists/stable/updates/main/source/modutils_2.3.11-12.dsc
      MD5 checksum: 19833dacf3eddfe651a33d95e82bb8c3
    
https://security.debian.org/dists/stable/updates/main/source/modutils_2.3.11.orig.tar.gz
      MD5 checksum: f1214811d48ce3662d5957ee599c8057

  Alpha architecture:
    
https://security.debian.org/dists/stable/updates/main/binary-alpha/modutils_2.3.11-12_alpha.deb
      MD5 checksum: 44ac46a4689bcbfe2f80ea1d4dcbbd6a

  ARM architecture:
    
https://security.debian.org/dists/stable/updates/main/binary-arm/modutils_2.3.11-12_arm.deb
      MD5 checksum: 7f6608a182324509ed24e7289fe4e3cd

  Intel ia32 architecture:
    
https://security.debian.org/dists/stable/updates/main/binary-i386/modutils_2.3.11-12_i386.deb
      MD5 checksum: 5050bd60fabb74e1814afc4f91b99e7f

  Motorola 680x0 architecture:
    
https://security.debian.org/dists/stable/updates/main/binary-m68k/modutils_2.3.11-12_m68k.deb
      MD5 checksum: 0925f9813b4bd2627e9302b092fcefa0

  PowerPC architecture:
    
https://security.debian.org/dists/stable/updates/main/binary-powerpc/modutils_2.3.11-12_powerpc.deb
      MD5 checksum: 5b469eb86dd396de058752c0c053b93d

  Sun Sparc architecture:
    
https://security.debian.org/dists/stable/updates/main/binary-sparc/modutils_2.3.11-12_sparc.deb
      MD5 checksum: 988da3bc5908fd6884201b8947f91608

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

- -- 
- ----------------------------------------------------------------------------
apt-get: deb  https://security.debian.org/ stable/updates main
dpkg -ftp:ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.


LinuxSecurity Poll

How frequently do you patch/update your system?

No answer selected. Please try again.
Please select either existing option or enter your own, however not both.
Please select minimum 0 answer(s) and maximum 3 answer(s).
/main-polls/52-how-frequently-do-you-patch-update-your-system?task=poll.vote&format=json
52
radio
[{"id":"179","title":"As soon as patches\/updates are released - I track advisories for my distro(s) diligently","votes":"47","type":"x","order":"1","pct":79.66,"resources":[]},{"id":"180","title":"Every so often, when I think of it","votes":"7","type":"x","order":"2","pct":11.86,"resources":[]},{"id":"181","title":"Hardly ever","votes":"5","type":"x","order":"3","pct":8.47,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350

Please vote first in order to view vote results.

VOTE ON THE POLL PAGE


VIEW MORE POLLS

bottom 200

Please enable / Bitte aktiviere JavaScript!
Veuillez activer / Por favor activa el Javascript![ ? ]

We use cookies to provide and improve our services. By using our site, you consent to our Cookie Policy.