PT-2021-28916

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.19.191 Description The issue allows only the init netns to set the default TCP congestion algorithm to a restricted algorithm. The actual impact and attack plausibility have not yet been proven. Recommendation...

PT-2021-24888

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.4.119 Description: The issue allows only the init netns to set the default TCP congestion algorithm to a restricted one. The actual impact and attack plausibility have not yet been proven. Recommendations: Fo...

Hotfix XS82E020 - For Citrix Hypervisor 8.2

Who Should Install This Hotfix? This is a hotfix for customers running Citrix Hypervisor 8.2. Information About this Hotfix Component| Details ---|--- Prerequisite| None Post-update tasks| Restart the XAPI Toolstack Content live patchable| No Baselines for Live Patch| N/A Revision History|...

PT-2021-8269

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is related to the tcp set default congestion control function in the Linux kernel, which has an unintended side-effect of changing the global net.ipv4.tcp allowed congestion...

vsftpd 3.0.3 - Remote Denial of Service

Exploit Title: vsftpd 3.0.3 - Remote Denial of Service Date: 22-03-2021 Exploit Author: xynmaps Vendor Homepage: https://security.appspot.com/vsftpd.html Software Link: https://security.appspot.com/downloads/vsftpd-3.0.3.tar.gz Version: 3.0.3 Tested on: Parrot Security OS 5.9.0...

Threat Advisory - DCCP for (D)DoS

Recent attacks against Akamai customers have leveraged a networking protocol known as protocol 33, or Datagram Congestion Control Protocol DCCP...

DEBIAN-CVE-2020-16119

Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccpshctxccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and...

The vulnerability of the dccp_printOption() function in the tcpdump utility for capturing and analyzing network traffic allows a hacker to induce a service failure.

The vulnerability of the dccpprintOption function print-dccp.c in the packet capture and analysis tool tcpdump is related to buffer-over-read operations in memory. Exploiting this vulnerability could allow a remote attacker to cause a service failure...

tcpdump: Buffer over-read in dccp_print_option() function in print-dccp.c

An out-of-bounds read vulnerability was discovered in tcpdump while printing DCCP packets captured in a pcap file or coming from the network. A remote attacker may abuse this flaw by sending specially crafted packets that, when printed, would trigger the flaw and crash the application...

USN-4577-1 linux-hwe, linux-gke-5.0, linux-gke-5.3, linux-oem-osp1, linux-raspi2-5.3 vulnerabilities

Hadar Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2020-16119 Giuseppe Scriva...

USN-4579-1 linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities

Hadar Manor discovered that the DCCP protocol implementation in the Linux kernel improperly handled socket reuse, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2020-16119 Wen Xu discover...

UBUNTU-CVE-2020-16119

Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccpshctxccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and...

Exploit for Use After Free in Linux Linux_Kernel

Public-Vulnerabilities 2020 CVE-2020-161...

New Attack Leverages HTTP/2 for Effective Remote Timing Side-Channel Leaks

Security researchers have outlined a new technique that renders a remote timing-based side-channel attack more effective regardless of the network congestion between the adversary and the target server. Remote timing attacks that work over a network connection are predominantly affected by...

When Bandwidth Doesn’t Last

Introduction Imperva’s Cloud WAF networking team went through a major transition from an operation team to a development team during the SDN era. We saw new products emerging for our network infrastructure - moving from manual operation to automatic. But, while the change of mindset from being an...

Denial Of Service (DoS)

kernel is vulnerable to denial of service. The vulnerability exists due to a flaw in the Datagram Congestion Control Protocol DCCP packets in the skbheaderpointer function allowing an attacker to send a maliciously crafted DCCP packet to crash the system...

Denial Of Service (DoS)

The kernel is vulnerable to denial of service DoS. An integer underflow flaw, leading to a buffer overflow, was found in the Linux kernel's Datagram Congestion Control Protocol DCCP implementation. This could allow a remote attacker to cause a denial of service...

Working Together to Manage Global Internet Traffic Increases

As businesses and consumers around the world adjust their routines amid the various COVID-19 restrictions, the internet is being used at a scale that the world has never experienced. In addition to millions of people who are now working from home, students all over the world are going online to...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4285-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4285-1 advisory. It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacke...

USN-4286-1: Linux kernel vulnerabilities

It was discovered that the Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors. A local attacker could use this to expose sensitive information. CVE-2019-14615 It was discovered that a race condition existed in the Softmac USB Prism54 devi...