exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

.NET Framework Integer Overflow

.NET Framework Integer Overflow
Posted Jul 26, 2015
Authored by Yorick Koster, Securify B.V.

An integer overflow exists in the System.DirectoryServices.Protocols.Utility class of the .NET Framework. Triggering this issue results in an overflown integer that is used to allocate a buffer on the heap that is too small, resulting in memory corruption. Exploiting this issues appears to be difficult. Consequently, Microsoft has decided to not release a security bulletin.

tags | advisory, overflow, protocol
SHA-256 | 1afa865b50719d016f840d929f46021c297eaaf847046ef8e5bb08fa3a10902d

.NET Framework Integer Overflow

Change Mirror Download
------------------------------------------------------------------------
Integer overflow in .NET Framework
System.DirectoryServices.Protocols.Utility class
------------------------------------------------------------------------
Yorick Koster, May 2015

------------------------------------------------------------------------
Abstract
------------------------------------------------------------------------
An integer overflow exists in the
System.DirectoryServices.Protocols.Utility class of the .NET Framework.
Triggering this issue results in an overflown integer that is used to
allocate a buffer on the heap that is too small, resulting in memory
corruption. Exploiting this issues appears to be difficult.
Consequently, Microsoft has decided to not release a security bulletin.

------------------------------------------------------------------------
Affected versions
------------------------------------------------------------------------
This issue affects .NET Framework version 4.5 and 4.6. Other versions
are not affected as this issue can only be triggered using large arrays
(> 2GB).

------------------------------------------------------------------------
Fix
------------------------------------------------------------------------
There is currently no fix available for this issue. Microsoft will not
release a security bulletin, it may be fixed in future versions of the
.NET Framework.

[...] [we] are going to pursue this as a candidate for improvement in
future versions, [...] On x86, the feasibility of an attack is mitigated
by the maximum process memory and even on amd64, prevailing
configurations preclude this from being a feasible attack.

------------------------------------------------------------------------
Details
------------------------------------------------------------------------
https://www.securify.nl/advisory/SFY20150501/integer_overflow_in__net_framework_system_directoryservices_protocols_utility_class.html
Login or Register to add favorites

File Archive:

March 2024

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