Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.15.98 and fixes atleast the following security issues: A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines o...

Debian: Security Advisory (DSA-1230-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2023 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...

K45012151: Layer 2 security bypass issue CVE-2021-27861, CVE-2021-27862, CVE-2021-27853, CVE-2021-27854

Security Advisory Description CVE-2021-27861 Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and optionally VLAN0 headers CVE-2021-27862 Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using...

SA45654 - Multiple OpenSSL Vulnerabilities in Layer 2 network filtering capabilities

Ivanti 4th of March 2024 - This isn't an active SA and any new edits are part of an article maintenance project. Multiple vulnerabilities were discovered with respect to Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0...

Microsoft Windows Multiple Vulnerabilities (KB5022338)

This host is missing an important security update according to Microsoft KB5022338 SPDX-FileCopyrightText: 2023 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 ifdescriptio...

Microsoft Windows Multiple Vulnerabilities (KB5022286)

This host is missing an important security update according to Microsoft KB5022286 SPDX-FileCopyrightText: 2023 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 ifdescriptio...

Remote code execution

Windows Layer 2 Tunneling Protocol L2TP Remote Code Execution Vulnerability...

CVE-2023-21555 Windows Layer 2 Tunneling Protocol (L2TP) Remote Code Execution Vulnerability

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CVE-2023-21546

CVE-2023-21546 is a Windows Layer 2 Tunneling Protocol (L2TP) remote code execution vulnerability. The entry provides a network-exposed, high-severity issue (CVSSv3.1: 8.1, AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H). The initial description and connected documents identify the affected vector as networ...

Microsoft Windows 竞争条件问题漏洞

Microsoft Windows is a suite of operating systems for use on personal devices from Microsoft Corporation USA. A competitive conditions issue vulnerability exists in the Microsoft Windows Layer 2 Tunneling Protocol. An attacker exploiting this vulnerability could remotely execute code...

Fedora 35 : kernel (2022-b36cd53dca)

The remote Fedora 35 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2022-b36cd53dca advisory. The 6.0.11 stable kernel update contains a number of important fixes across the tree. Tenable has extracted the preceding description block directly...

CVE-2022-4129

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol L2TP. A missing lock when clearing skuserdata can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service...

CVE-2022-4129

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol L2TP. A missing lock when clearing skuserdata can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service...

CVE-2022-4129

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol L2TP. A missing lock when clearing skuserdata can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service...

CVE-2022-4129

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol L2TP. A missing lock when clearing skuserdata can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service...

Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities

Multiple vulnerabilities in the Cisco Discovery Protocol and Link Layer Discovery Protocol LLDP for Cisco ATA 190 Series Analog Telephone Adapter Software could allow an attacker to execute code, cause the service to reload unexpectedly, or cause Cisco Discovery Protocol or LLDP database corrupti...

CVE-2021-27862

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion and optionally VLAN0 headers...

CVE-2021-27861

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and optionally VLAN0 headers...

Code injection

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length and optionally VLAN0 headers...

CVE-2021-27862

CVE-2021-27862 is a Layer 2 network filtering bypass vulnerability where IPv6 RA/RA guard-like filtering can be bypassed via LLC/SNAP headers with invalid length and Ethernet-to-WiFi frame translation (and optionally VLAN0 headers). Public documents confirm exposure across vendor devices (e.g., C...