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Ubuntu: 985-1: mountall vulnerability Print E-mail
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Posted by Benjamin D. Thomas   
Ubuntu Alasdair MacGregor discovered that mountall created a udev rule filewith world-writable permissions. A local attacker could exploit thisunder certain conditions to cause udev to execute arbitrary commands asthe root user. [More...]
Ubuntu Security Notice USN-985-1         September 08, 2010
mountall vulnerability

A security issue affects the following Ubuntu releases:

Ubuntu 10.04 LTS

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 10.04 LTS:
  mountall                        2.15.2

In general, a standard system update will make all the necessary changes.

Details follow:

Alasdair MacGregor discovered that mountall created a udev rule file
with world-writable permissions. A local attacker could exploit this
under certain conditions to cause udev to execute arbitrary commands as
the root user.

Updated packages for Ubuntu 10.04:

  Source archives:
      Size/MD5:      972 92e488f0e51ab3c20ddf537fdc92fd24
      Size/MD5:   564582 036e6a108a9bc0c2155a7226ad5437c3

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):
      Size/MD5:    56016 76dc051afb8a20077f0c0b709369d6c0

  i386 architecture (x86 compatible Intel/AMD):
      Size/MD5:    52384 42ebb3fa3f81ed1a08270d48a8f6b367

  powerpc architecture (Apple Macintosh G3/G4/G5):
      Size/MD5:    55780 cf51c1268b9b188150f9d2131882d8bb

  sparc architecture (Sun SPARC/UltraSPARC):
      Size/MD5:    56758 276c85acaf4feaa54c53615f0a572b8b

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