EulerOS 2.0 SP5 : kernel (EulerOS-SA-2019-1692)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. Whil...

VMware product updates address Linux kernel vulnerabilities in TCP Selective Acknowledgement (SACK) (CVE-2019-11477, CVE-2019-11478)

3. Linux kernel vulnerabilities in TCP Selective Acknowledgement SACK CVE-2019-11477, CVE-2019-11478 CVE-2019-11477 - SACK Panic - A sequence of SACKs may be crafted such that one can trigger an integer overflow, leading to a kernel panic. VMware has evaluated the severity of this issue to be in...

VMSA-2019-0010:VMware product updates address Linux kernel vulnerabilities in TCP Selective Acknowledgement (SACK)

VMware Security Advisories Advisory ID| VMSA-2019-0010.3 ---|--- Advisory Severity| Important CVSSv3 Range| 5.3 - 7.5 Synopsis| VMware product updates address Linux kernel vulnerabilities in TCP Selective Acknowledgement SACK CVE-2019-11477, CVE-2019-11478 Issue Date| 2019-07-02 Updated On|...

Linux Kernel TCP SACK Denial of Service Vulnerability

Executive Summary Known vulnerabilities exist in the Linux kernel. These vulnerabilities are documented by the following CVEs: CVE-2019-11477, CVE-2019-11478, and CVE-2019-11479. The purpose of this advisory is to explain the various effects of these vulnerabilities and to provide links to more...

KLA11586 Linux Kernel TCP SACK Denial of Service Vulnerability

Various vulnerabilities was found in Linux Kernel. Microsoft adresses the various effects of these vulnerabilities and provides links to more information: 1. If you are running a Linux kernel in your Azure environment, you should contact the provider of that Linux kernel to understand their...

EulerOS 2.0 SP3 : kernel (EulerOS-SA-2019-1672)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. Whil...

Information about TCP SACK Panic Findings in PAN-OS

Palo Alto Networks is aware of recent vulnerability disclosures known as TCP SACK Panic vulnerabilities. Ref: PAN-119745/ CVE-2019-11477, CVE-2019-11478, CVE-2019-11479...

Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service

An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While processing SACK segments, the Linux kernel's socket buffer SKB data structure becomes fragmented. Each fragment is about TCP maximum segment size MSS...

Important: Red Hat Security Advisory: kernel-alt security update

An update for kernel-alt is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fro...

Kernel: tcp: integer overflow while processing SACK blocks allows remote denial of service

An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While processing SACK segments, the Linux kernel's socket buffer SKB data structure becomes fragmented. Each fragment is about TCP maximum segment size MSS...

SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1692-1) (SACK Panic) (SACK Slowness)

The SUSE Linux Enterprise 12 kernel version 3.12.61 was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel pani...

Denial Of Service (DoS)

kernel is vulnerable to denial of service. An integer overflow flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment SACK segments. While processing SACK segments, the Linux kernel's socket buffer SKB data structure becomes fragmented. Each...

Denial Of Service (DoS)

kernel is vulnerable to denial of service. The TCP retransmission queue implementation in tcpfragment could be fragmented when handling certain TCP Selective Acknowledgment SACK sequences, allowing a remote attacker to cause a denial of service condition in the kernel...

SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1671-1) (SACK Panic) (SACK Slowness)

This update for the Linux Kernel 4.4.121-92104 fixes several issues. The following security issues were fixed : CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network...

Virtuozzo 6 : parallels-server-bm-release / vzkernel / etc (VZA-2019-052)

According to the versions of the parallels-server-bm-release / vzkernel / etc packages installed, the Virtuozzo installation on the remote host is affected by the following vulnerabilities : - A double-free can happen in idrremoveall in lib/idr.c in the Linux kernel. An unprivileged local attacke...

SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1668-1) (SACK Panic) (SACK Slowness)

This update for the Linux Kernel 3.12.74-6064107 fixes several issues. The following security issues were fixed : CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless netwo...

The vulnerability of the TCP Selective Acknowledgment mechanism in the Linux operating system allows a hacker to trigger a service failure.

The vulnerability of the TCP SACK mechanism TCP Selective Acknowledgement in the Linux operating system is due to a numerical overflow condition. Exploiting this vulnerability allows an attacker to cause a service failure by sending a specially crafted sequence of SACK packets remotely...

Greenbone OS - Kernel Denial of Service Vulnerabilities (Jun 2019)

The Kernel in Greenbone OS is prone to multiple denial of service vulnerabilities. SPDX-FileCopyrightText: 2019 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 CPE =...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-1571) (SACK Panic) (SACK Slowness)

The openSUSE Leap 15.1 was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. bsc1137586. -...

RHEL 6 : kernel-rt (RHSA-2019:1487)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1487 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...