[USN-237-1] nbd vulnerability

Martin Pitt martin.pitt at canonical.com
Fri Jan 6 09:11:57 GMT 2006


===========================================================
Ubuntu Security Notice USN-237-1	   January 06, 2006
nbd vulnerability
CVE-2005-3354
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 5.10 (Breezy Badger)

The following packages are affected:

nbd-server

The problem can be corrected by upgrading the affected package to
version 1:2.7.4-1ubuntu0.1.  In general, a standard system upgrade is
sufficient to effect the necessary changes.

Details follow:

Kurt Fitzner discovered that the NBD (network block device) server did
not correctly verify the maximum size of request packets. By sending
specially crafted large request packets, a remote attacker who is
allowed to access the server could exploit this to execute arbitrary
code with root privileges.

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd_2.7.4-1ubuntu0.1.diff.gz
      Size/MD5:    33658 9681548b7c1a6382eae974202817d7b9
    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd_2.7.4-1ubuntu0.1.dsc
      Size/MD5:      588 29acf0d03aae92f01ad55faf0bc315e4
    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd_2.7.4.orig.tar.gz
      Size/MD5:   131430 841999f8d7ae0d6a903a6285ff68a49e

  amd64 architecture (Athlon64, Opteron, EM64T Xeon)

    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd-client_2.7.4-1ubuntu0.1_amd64.deb
      Size/MD5:    22292 dd1283e9e72c3e468a8395ac4e4ee5f9
    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd-server_2.7.4-1ubuntu0.1_amd64.deb
      Size/MD5:    29780 3e33c37166bb012f07233bafbd8dcfc2

  i386 architecture (x86 compatible Intel/AMD)

    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd-client_2.7.4-1ubuntu0.1_i386.deb
      Size/MD5:    22306 224ebd247235d85b13d127c4a14e1d8e
    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd-server_2.7.4-1ubuntu0.1_i386.deb
      Size/MD5:    30020 ec25105a117d294f401f751fccf31737

  powerpc architecture (Apple Macintosh G3/G4/G5)

    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd-client_2.7.4-1ubuntu0.1_powerpc.deb
      Size/MD5:    22298 0efb5b981bbc2d62e67b8c8fef322e56
    http://security.ubuntu.com/ubuntu/pool/main/n/nbd/nbd-server_2.7.4-1ubuntu0.1_powerpc.deb
      Size/MD5:    31996 a4ace5d1280fab68a6fc0c93bc4fccc0
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