11099 matches found
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...
CVE-2022-20728
A vulnerability in the client forwarding code of multiple Cisco Access Points APs could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards...
CVE-2022-20728
A vulnerability in the client forwarding code of multiple Cisco Access Points APs could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards...
Design/Logic Flaw
A vulnerability in the client forwarding code of multiple Cisco Access Points APs could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards...
CVE-2022-20728
CVE-2022-20728 describes a VLAN-bypass flaw in the client forwarding code of multiple Cisco Access Points. An unauthenticated, adjacent attacker can inject packets from the native VLAN to nonnative VLAN clients due to a logic error that forwards packets destined to a wireless client when received...
CVE-2022-20728 Cisco Access Points VLAN Bypass from Native VLAN Vulnerability
A vulnerability in the client forwarding code of multiple Cisco Access Points APs could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards...
CVE-2022-20728 Cisco Access Points VLAN Bypass from Native VLAN Vulnerability
A vulnerability in the client forwarding code of multiple Cisco Access Points APs could allow an unauthenticated, adjacent attacker to inject packets from the native VLAN to clients within nonnative VLANs on an affected device. This vulnerability is due to a logic error on the AP that forwards...
CVE-2022-40279
An issue was discovered in Samsung TizenRT through 3.0GBM and 3.1PRE. l2packetreceivetimeout in wpasupplicant/src/l2packet/l2packetpcap.c has a missing check on the return value of pcapdispatch, leading to a denial of service malfunction...
DEBIAN-CVE-2022-39173
In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list ...
Cisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnerability
A vulnerability in the DNS application layer gateway ALG functionality that is used by Network Address Translation NAT in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability is due to a logic error that occurs when an...
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-2021-27854
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-2021-27861
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 LLC/SNAP headers with invalid length and Ethernet to Wifi frame conversion 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 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-2021-27862
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...
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...