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

WebRTC FEC Processing Overflow

WebRTC FEC Processing Overflow
Posted Jul 31, 2018
Authored by Google Security Research, natashenka

There are several calls to memcpy that can overflow the destination buffer in webrtc::UlpfecReceiverImpl::AddReceivedRedPacket. The method takes a parameter incoming_rtp_packet, which is an RTP packet with a mac length that is defined by the transport (2048 bytes for DTLS in Chrome). This packet is then copied to the received_packet in several locations in the method, depending on packet properties, using the lenth of the incoming_rtp_packet as the copy length. The received_packet is a ForwardErrorCorrection::ReceivedPacket, which has a max size of 1500. Therefore, the memcpy calls in this method can overflow this buffer.

tags | exploit, overflow
SHA-256 | d1a68d115602943c75ef4224cd1f0eadd4d0f1d0737c781bbf560884db40f90e
Login or Register to add favorites

File Archive:

September 2024

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2024 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close