PT-2023-1046 · Microsoft · Windows

Name of the Vulnerable Software and Affected Versions: Windows versions prior to the fixed version Description: The issue is related to the implementation of the Layer 2 Tunneling Protocol L2TP in Microsoft Windows, specifically involving the use of memory after it has been freed. This can be...

Microsoft Windows 安全漏洞

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

Microsoft Windows 安全漏洞

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

OESA-2022-2162 kernel security update

Security Fixes: A use-after-free flaw was found in Linux kernel before 5.19.2. This issue occurs in cmdhdlfilter in drivers/staging/rtl8712/rtl8712cmd.c, allowing an attacker to launch a local denial of service attack and gain escalation of privileges.CVE-2022-4095 There are null-ptr-deref...

OESA-2022-2142 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...

OESA-2022-2141 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: 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...

Siemens SCALANCE Series 资源管理错误漏洞

The SCALANCE X-204RNA Industrial Ethernet Access Point enables non-PRP end devices to connect to separate parallel networks where required. An uncontrolled resource consumption vulnerability exists in Siemens SCALANCE X-200RNA Switch Devices, which can be exploited by an attacker to cause a denia...

DEBIAN-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...

UBUNTU-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...

Same function

Lines of code Vulnerability details Both functions do the same thing, while logically one of the functions should be for layer one and the other function should be in layer two to perform the same operation. --- The text was updated successfully, but these errors were encountered: All reactions...

Researcher discovered vulnerabilities in Layer-2 managed switches

A researcher has found vulnerabilities in network security techniques at the Layer-2 level. The vulnerabilities reside in the fact that the QinQ functionality IEEE 802.1ad standard incorrectly allows VLAN 0 priority tag and 802.2 LLC/SNAP headers can be stacked multiple define VLANs within VLANs....

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-2021-27854

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using combinations of VLAN 0 headers, LLC/SNAP headers, and converting frames from Ethernet to Wifi and its reverse...

CVE-2021-27862 L2 network filtering bypass using stacked VLAN0 and LLC/SNAP headers with an invalid length during Ethernet to Wifi frame translation

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-2021-27854 L2 network filtering bypass using stacked VLAN0, LLC/SNAP headers, and Ethernet to Wifi frame translation

Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using combinations of VLAN 0 headers, LLC/SNAP headers, and converting frames from Ethernet to Wifi and its reverse...

CVE-2021-27853

Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers...

多款Cisco产品安全漏洞

Cisco NX-OS Software and others are products of Cisco Corporation.Cisco NX-OS Software is a set of data center-grade operating system software used by switches.Cisco IOS is an operating system developed for its network devices.Cisco IOS XE Software is an operating system.Cisco IOS XE Software is...

多款Cisco产品安全漏洞

Cisco NX-OS Software and others are products of Cisco Corporation.Cisco NX-OS Software is a set of data center-grade operating system software used by switches.Cisco IOS is an operating system developed for its network devices.Cisco IOS XE Software is an operating system.Cisco IOS XE Software is...

PT-2022-9878 · Ieee +1 · 802.2 +3

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: The issue allows Layer 2 network filtering capabilities, such as IPv6 RA guard, to be bypassed. This can be achieved by utilizing LLC/SNAP headers with...

PT-2022-4863 · Cisco · Cisco Ios +1

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: The issue is related to the implementation of the Ethernet encapsulation protocol, specifically concerning the combination of headers. This could allow ...