FreeBSD Denial of Service Vulnerability (CNVD-2020-38784)

FreeBSD is a set of Unix-like free operating systems in the FreeBSD project, headed by the Core Team team, and is an important branch of Unix-like systems that have evolved through BSD, 386BSD, and 4.4BSD. A denial of service vulnerability exists in the ip fragmentation reorganization code in...

QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams

A heap buffer overflow issue was found in the way SLiRP networking back-end in QEMU processes fragmented packets. It could occur while reassembling the fragmented datagrams of an incoming packet. A privileged user/process inside guest could use this flaw to crash the QEMU process resulting in DoS...

Debian DLA-1466-1 : linux-4.9 security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation or denial of service. CVE-2018-5390 SegmentSmack Juha-Matti Tilli discovered that a remote attacker can trigger the worst case code paths for TCP stream reassembly with low rates of specially...

Debian DSA-4272-1 : linux - security update

CVE-2018-5391 FragmentSmack Juha-Matti Tilli discovered a flaw in the way the Linux kernel handled reassembly of fragmented IPv4 and IPv6 packets. A remote attacker can take advantage of this flaw to trigger time and calculation expensive fragment reassembly algorithms by sending specially...

BSA-2018-690

Security Advisory ID : BSA-2018-690 Component : Kernel Revision : 1.0: Final The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending...

FreeBSD -- Resource exhaustion in IP fragment reassembly

Problem Description: 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...

UBUNTU-CVE-2018-5391

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation...

Updated kernel packages fix security vulnerabilities

This kernel update is based on the upstream 4.14.62 and fixes at least the following security issues: Security researchers from FICORA have identified a remote denial of service attack against the Linux kernel caused by inefficient implementation of TCP segment reassembly, named "SegmentSmack". A...

CVE-2018-6922

One of the data structures that holds TCP segments in all versions of FreeBSD prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p10 uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in...

CVE-2018-6922

Removed by vendor...

CVE-2018-6922

One of the data structures that holds TCP segments in all versions of FreeBSD prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p10 uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in...

FreeBSD : FreeBSD -- Resource exhaustion in TCP reassembly (3c2eea8c-99bf-11e8-8bee-a4badb2f4699)

One of the data structures that holds TCP segments uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in the reassembly queue. Impact : An attacker who has the ability to send TCP traffic to a...

[SECURITY] [DSA 4266-1] linux security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4266-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso August 06, 2018 https://www.debian.org/security/faq -...

FreeBSD -- Resource exhaustion in TCP reassembly

Problem Description: One of the data structures that holds TCP segments uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in the reassembly queue. Impact: An attacker who has the ability to send...

FreeBSD-SA-18:08.tcp

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-18:08.tcp Security Advisory The FreeBSD Project Topic: Resource exhaustion in TCP reassembly Category: core Module: inet Announced: 2018-08-06 Credits:...

CVE-2018-0369

A vulnerability in the reassembly logic for fragmented IPv4 packets of Cisco StarOS running on virtual platforms could allow an unauthenticated, remote attacker to trigger a reload of the npusim process, resulting in a denial of service DoS condition. There are four instances of the npusim proces...

PT-2018-1834 · Palo Alto Networks +9 · Pan-Os +12

Name of the Vulnerable Software and Affected Versions: Linux kernel versions 3.9 and later PAN-OS versions prior to 6.1.22 PAN-OS versions prior to 7.1.20 PAN-OS versions prior to 8.0.13 PAN-OS versions prior to 8.1.5 Arista EOS affected versions not specified vEOS affected versions not specified...

Denial of Service Vulnerability in Cisco Wireless LAN Controller

The Cisco 3500, 5500, and 8500 Series Wireless LAN Controller Software are wireless LAN control software from Cisco. A resource management error vulnerability exists in the IP Version 4 IPv4 fragment reassembly feature in the Cisco 3500, 5500, and 8500 Series Wireless LAN Controller Software, whi...

CVE-2018-0252

A vulnerability in the IP Version 4 IPv4 fragment reassembly function of Cisco 3500, 5500, and 8500 Series Wireless LAN Controller Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. The...

Race condition

A vulnerability in the IP Version 4 IPv4 fragment reassembly function of Cisco 3500, 5500, and 8500 Series Wireless LAN Controller Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. The...