exploit the possibilities
Showing 1 - 1 of 1 RSS Feed

CVE-2018-6923

Status Candidate

Overview

In FreeBSD before 11.1-STABLE, 11.2-RELEASE-p2, 11.1-RELEASE-p13, ip fragment reassembly code is vulnerable to a denial of service due to excessive system resource consumption. This issue can allow a remote attacker who is able to send an arbitrary ip fragments to cause the machine to consume excessive resources.

Related Files

FreeBSD Security Advisory - FreeBSD-SA-18:10.ip
Posted Aug 15, 2018
Authored by Juha-Matti Tilli | Site security.freebsd.org

FreeBSD Security Advisory - A researcher has notified us of a DoS attack applicable to another operating system. While FreeBSD may not be vulnerable to that exact attack, we have identified several places where inadequate DoS protection could allow an attacker to consume system resources. It is not necessary that the attacker be able to establish two-way communication to carry out these attacks. These attacks impact both IPv4 and IPv6 fragment reassembly. In the worst case, an attacker could send a stream of crafted fragments with a low packet rate which would consume a substantial amount of CPU. Other attack vectors allow an attacker to send a stream of crafted fragments which could consume a large amount of CPU or all available mbuf clusters on the system. These attacks could temporarily render a system unreachable through network interfaces or temporarily render a system unresponsive. The effects of the attack should clear within 60 seconds after the attack stops.

tags | advisory
systems | freebsd, bsd
advisories | CVE-2018-6923
MD5 | 6d1a3e8fec6cb509fd14501d91ac75b5
Page 1 of 1
Back1Next

File Archive:

October 2020

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close