what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

FreeBSD Security Advisory 2000.77

FreeBSD Security Advisory 2000.77
Posted Jan 1, 2001
Authored by The FreeBSD Project | Site freebsd.org

FreeBSD Security Advisory - Three problems affect the /proc filesystem on FreeBSD. The first allows unprivileged local users can gain superuser privileges due to insufficient access control checks on the /proc//ctl files, which gives access to a process address space and perform various control operations on the process respectively. The second allows local users to deny service to a machine by mmap()ing a processes own /proc//mem file in the procfs filesystem. The third allows users with superuser privileges on the machine, including users with root privilege in a jail(8) virtual machine, to overflow a buffer in the kernel and bypass access control checks placed on the abilities of the superuser. This allows root users to break out of the jail environment, lower the securelevel, and load modules in kernels where module loading has been disabled.

tags | overflow, kernel, local, root
systems | freebsd
SHA-256 | 1be1e19e18220a02b70cfb8ea9e3cbd761ff6f228fe93d6cbd2e541f870d4df1

FreeBSD Security Advisory 2000.77

Login or Register to add favorites

File Archive:

July 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jul 1st
    27 Files
  • 2
    Jul 2nd
    10 Files
  • 3
    Jul 3rd
    35 Files
  • 4
    Jul 4th
    27 Files
  • 5
    Jul 5th
    18 Files
  • 6
    Jul 6th
    0 Files
  • 7
    Jul 7th
    0 Files
  • 8
    Jul 8th
    28 Files
  • 9
    Jul 9th
    44 Files
  • 10
    Jul 10th
    24 Files
  • 11
    Jul 11th
    25 Files
  • 12
    Jul 12th
    11 Files
  • 13
    Jul 13th
    0 Files
  • 14
    Jul 14th
    0 Files
  • 15
    Jul 15th
    28 Files
  • 16
    Jul 16th
    6 Files
  • 17
    Jul 17th
    34 Files
  • 18
    Jul 18th
    6 Files
  • 19
    Jul 19th
    34 Files
  • 20
    Jul 20th
    0 Files
  • 21
    Jul 21st
    0 Files
  • 22
    Jul 22nd
    0 Files
  • 23
    Jul 23rd
    0 Files
  • 24
    Jul 24th
    0 Files
  • 25
    Jul 25th
    0 Files
  • 26
    Jul 26th
    0 Files
  • 27
    Jul 27th
    0 Files
  • 28
    Jul 28th
    0 Files
  • 29
    Jul 29th
    0 Files
  • 30
    Jul 30th
    0 Files
  • 31
    Jul 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close