Authentication flaw

A vulnerability in 802.1x function of Cisco IOS Software on the Catalyst 6500 Series Switches could allow an unauthenticated, adjacent attacker to access the network prior to authentication. The vulnerability is due to how the 802.1x packets are handled in the process path. An attacker could...

CVE-2019-1758

A vulnerability in 802.1x function of Cisco IOS Software on the Catalyst 6500 Series Switches could allow an unauthenticated, adjacent attacker to access the network prior to authentication. The vulnerability is due to how the 802.1x packets are handled in the process path. An attacker could...

CVE-2019-1750

A vulnerability in the Easy Virtual Switching System VSS of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol CDP...

CVE-2019-1750

A vulnerability in the Easy Virtual Switching System VSS of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol CDP...

CVE-2019-1758 Cisco IOS Software Catalyst 6500 Series 802.1x Authentication Bypass Vulnerability

A vulnerability in 802.1x function of Cisco IOS Software on the Catalyst 6500 Series Switches could allow an unauthenticated, adjacent attacker to access the network prior to authentication. The vulnerability is due to how the 802.1x packets are handled in the process path. An attacker could...

CVE-2019-1758

CVE-2019-1758 affects Cisco IOS Software on the Catalyst 6500 Series Switches. The issue stems from how 802.1x packets are handled in the process path, enabling an unauthenticated, adjacent attacker on an 802.1x configured port to intermittently access the network before authentication. Provided ...

CVE-2019-1758 Cisco IOS Software Catalyst 6500 Series 802.1x Authentication Bypass Vulnerability

A vulnerability in 802.1x function of Cisco IOS Software on the Catalyst 6500 Series Switches could allow an unauthenticated, adjacent attacker to access the network prior to authentication. The vulnerability is due to how the 802.1x packets are handled in the process path. An attacker could...

Cisco Catalyst 6500 Series Switches Cisco IOS Authorization Issues Vulnerability

Cisco Catalyst 6500 Series Switches is a 6500 series modular chassis switch from Cisco, Inc.Cisco IOS is one of the operating systems developed for its network devices. Cisco Catalyst 6500 Series Switches Cisco IOS Authorization Issue Vulnerability. An attacker could exploit this vulnerability to...

CVE-2019-1758: Improper Authentication

A vulnerability in 802.1x function of Cisco IOS Software on the Catalyst 6500 Series Switches could allow an unauthenticated, adjacent attacker to access the network prior to authentication. The vulnerability is due to how the 802.1x packets are handled in the process path. An attacker could...

Cisco IOS XE Catalyst 4500 Denial of Service Vulnerability

Cisco IOS XE is a modular operating system based on the Linux kernel. A denial of service vulnerability exists in the Simple Virtual Switching System VSS of the Cisco IOS XE software on Catalyst 4500 series switches, which stems from a failure to perform a complete processing error when handling...

CVE-2019-1750 Cisco IOS XE Software Catalyst 4500 Cisco Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Easy Virtual Switching System VSS of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol CDP...

CVE-2019-1750 Cisco IOS XE Software Catalyst 4500 Cisco Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Easy Virtual Switching System VSS of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol CDP...

CVE-2019-1750

Cisco IOS XE Software on Catalyst 4500 Series Switches is vulnerable in the Easy Virtual Switching System (VSS) to denial of service via unauthenticated, adjacent CDP packets. The root cause is incomplete error handling when processing CDP in VSS. An attacker can send a crafted CDP packet to caus...

Cisco IOS XE Software Catalyst 4500 Cisco Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Easy Virtual Switching System VSS of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol CDP...

Cisco IOS Software Catalyst 6500 Series 802.1x Authentication Bypass Vulnerability

A vulnerability in 802.1x function of Cisco IOS Software on the Catalyst 6500 Series Switches could allow an unauthenticated, adjacent attacker to access the network prior to authentication. The vulnerability is due to how the 802.1x packets are handled in the process path. An attacker could...

PT-2019-15173

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Software on Catalyst 4500 Series Switches affected versions not specified Description The issue is due to incomplete error handling when processing Cisco Discovery Protocol CDP packets used with the Easy Virtual Switching System. ...

CVE-2019-1750: Improper Input Validation

A vulnerability in the Easy Virtual Switching System VSS of Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an unauthenticated, adjacent attacker to cause the switches to reload. The vulnerability is due to incomplete error handling when processing Cisco Discovery Protocol CDP...

PT-2019-1752

Name of the Vulnerable Software and Affected Versions Cisco IOS versions on the Catalyst 6500 Series Switches affected versions not specified Description The issue is related to the implementation of the 802.1X standard in Cisco IOS, specifically concerning the authentication procedure. An...

NULL pointer de-reference in Samba AD DC DNS servers

Description During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTYZONEMASTERSERVERS property or DSPROPERTYZONESCAVENGINGSERVERS property is set, the server will follow a NULL pointer and terminate...

NULL pointer de-reference in Samba AD DC LDAP server

Description During the processing of an LDAP search before Samba's AD DC returns the LDAP entries to the client, the entries are cached in a single memory object with a maximum size of 256MB. When this size is reached, the Samba process providing the LDAP service will follow the NULL pointer,...