CVE-2019-20612

An issue was discovered on Samsung mobile devices with N7.x and O8.x Broadcom Wi-Fi, and SEC Wi-Fi chipsets software. Wi-Fi allows a denial of service via TCP SYN packets. The Samsung ID is SVE-2018-13162 March 2019...

Design/Logic Flaw

An issue was discovered on Samsung mobile devices with N7.x and O8.x Broadcom Wi-Fi, and SEC Wi-Fi chipsets software. Wi-Fi allows a denial of service via TCP SYN packets. The Samsung ID is SVE-2018-13162 March 2019...

CVE-2019-20612

The CVE-2019-20612 entry applies to Samsung mobile devices running N(7.x) and O(8.x) firmware that use Broadcom Wi‑Fi and SEC Wi‑Fi chipsets. The issue is a denial-of-service condition triggered by TCP SYN packets directed at the Wi‑Fi subsystem, with the vulnerability described as a problem in t...

CVE-2019-20612

An issue was discovered on Samsung mobile devices with N7.x and O8.x Broadcom Wi-Fi, and SEC Wi-Fi chipsets software. Wi-Fi allows a denial of service via TCP SYN packets. The Samsung ID is SVE-2018-13162 March 2019...

FreeBSD : FreeBSD -- TCP IPv6 SYN cache kernel information disclosure (0e06013e-6a06-11ea-92ab-00163e433440)

When a TCP server transmits or retransmits a TCP SYN-ACK segment over IPv6, the Traffic Class field is not initialized. This also applies to challenge ACK segments, which are sent in response to received RST segments during the TCP connection setup phase. Impact : For each TCP SYN-ACK or challeng...

FreeBSD-SA-20:04.tcp

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-20:04.tcp Security Advisory The FreeBSD Project Topic: TCP IPv6 SYN cache kernel information disclosure Category: core Module: tcp Announced: 2020-03-19 Credits...

FreeBSD -- TCP IPv6 SYN cache kernel information disclosure

Problem Description: When a TCP server transmits or retransmits a TCP SYN-ACK segment over IPv6, the Traffic Class field is not initialized. This also applies to challenge ACK segments, which are sent in response to received RST segments during the TCP connection setup phase. Impact: For each TCP...

Linux: Number of outstanding syn requests allowed (net.ipv4.tcp_max_syn_backlog)

This script checks the number of outstanding syn requests allowed. SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CVE-2019-2317

The secret key used to make the Initial Sequence Number in the TCP SYN packet could be brute forced and therefore can be predicted in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon...

Code injection

The secret key used to make the Initial Sequence Number in the TCP SYN packet could be brute forced and therefore can be predicted in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon...

CVE-2019-2317

CVE-2019-2317 is a vulnerability in Qualcomm Snapdragon components where the secret key used to generate the TCP Initial Sequence Number (ISN) in SYN packets can be brute-forced, enabling prediction of ISNs. Affected products include a wide range of Snapdragon platforms (Auto, Compute, Consumer I...

CVE-2019-2317

The secret key used to make the Initial Sequence Number in the TCP SYN packet could be brute forced and therefore can be predicted in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon...

New Linux Bug Lets Attackers Hijack Encrypted VPN Connections

A team of cybersecurity researchers has disclosed a new severe vulnerability affecting most Linux and Unix-like operating systems, including FreeBSD, OpenBSD, macOS, iOS, and Android, that could allow remote 'network adjacent attackers' to spy on and tamper with encrypted VPN connections. The...

aSYNcrone - A SYN Flood DDoS Tool

aSYNcrone is a C language based, mulltifunction SYN Flood DDoS Weapon. Disable the destination system by sending a SYN packet intensively to the destination. aSYNcrone's POWER!!! USAGE git clone https://github.com/fatih4842/aSYNcrone.git cd aSYNcrone gcc aSYNcrone.c -o aSYNcrone -lpthread...

CVE-2019-15134

RIOT through 2019.07 contains a memory leak in the TCP implementation gnrctcp, allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to receive in sys/net/gnrc/transportlayer/tcp/gnrctcpeventloop.c...

CVE-2019-15134

RIOT through 2019.07 contains a memory leak in the TCP implementation gnrctcp, allowing an attacker to consume all memory available for network packets and thus effectively stopping all network threads from working. This is related to receive in sys/net/gnrc/transportlayer/tcp/gnrctcpeventloop.c...

CVE-2019-11890

Sony Bravia Smart TV devices allow remote attackers to cause a denial of service device hang or reboot via a SYN flood attack over a wired or Wi-Fi LAN...

Design/Logic Flaw

Sony Bravia Smart TV devices allow remote attackers to cause a denial of service device hang or reboot via a SYN flood attack over a wired or Wi-Fi LAN...

CVE-2019-11890

Sony Bravia Smart TV devices allow remote attackers to cause a denial of service device hang or reboot via a SYN flood attack over a wired or Wi-Fi LAN...

5 Years of Fighting DDoS with the Power of Akamai

Additional analysis and research provided by Principal Architect, Tom Emmons Earlier this year, Akamai celebrated the fifth anniversary of the Prolexic acquisition. The merger was officially completed in February of 2014, and a lot has happened since then. In this post, we want to spend a moment...