Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2017-3606)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3606 advisory. - l2tp: fix racy SOCKZAPPED flag check in l2tpip,6bind Guillaume Nault Orabug: 26586047 CVE-2016-10200 - xfs: fix two memory leaks in xfsattrlist.c...

Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2017-3607)

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-3607 advisory. - l2tp: fix racy SOCKZAPPED flag check in l2tpip,6bind Guillaume Nault Orabug: 26586050 CVE-2016-10200 - xfs: fix two memory leaks in xfsattrlist.c...

Unbreakable Enterprise kernel security update

2.6.39-400.297.6 - l2tp: fix racy SOCKZAPPED flag check in l2tpip,6bind Guillaume Nault Orabug: 26586050 CVE-2016-10200 - xfs: fix two memory leaks in xfsattrlist.c error paths Mateusz Guzik Orabug: 26586024 CVE-2016-9685 - KEYS: Disallow keyrings beginning with '.' to be joined as session keyrin...

Unbreakable Enterprise kernel security update

kernel-uek 3.8.13-118.19.4 - l2tp: fix racy SOCKZAPPED flag check in l2tpip,6bind Guillaume Nault Orabug: 26586047 CVE-2016-10200 - xfs: fix two memory leaks in xfsattrlist.c error paths Mateusz Guzik Orabug: 26586022 CVE-2016-9685 - KEYS: Disallow keyrings beginning with '.' to be joined as...

Design/Logic Flaw

A vulnerability in MikroTik Version 6.38.5 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of UDP packets on port 500 used for L2TP over IPsec, preventing the affected router from accepting new connections; all devices will be disconnected from the router a...

CVE-2017-8338

A vulnerability in MikroTik Version 6.38.5 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of UDP packets on port 500 used for L2TP over IPsec, preventing the affected router from accepting new connections; all devices will be disconnected from the router a...

openSUSE Security Update : the Linux Kernel (openSUSE-2017-562)

The openSUSE Leap 42.1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : - CVE-2017-7618: crypto/ahash.c in the Linux kernel allowed attackers to cause a denial of service API operation calling its own callback, and infinite recursion by...

Security update for the Linux Kernel (important)

The openSUSE Leap 42.1 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2017-7618: crypto/ahash.c in the Linux kernel allowed attackers to cause a denial of service API operation calling its own callback, and infinite recursion by triggeri...

VPN Server Detection via PPTP/L2TP

Binary data 7264.pasl...

Cisco IOS L2TP Parsing DoS (cisco-sa-20170322-l2tp)

According to its self-reported version, the Cisco IOS software running on the remote device is affected by a denial of service vulnerability in its Layer 2 Tunneling Protocol L2TP parsing function due to insufficient validation of L2TP packets. An unauthenticated, remote attacker can exploit this...

Cisco IOS XE L2TP Parsing DoS (cisco-sa-20170322-l2tp)

According to its self-reported version, the Cisco IOS XE software running on the remote device is affected by a denial of service vulnerability in its Layer 2 Tunneling Protocol L2TP parsing function due to insufficient validation of L2TP packets. An unauthenticated, remote attacker can exploit...

Cisco IOS Software Layer 2 Tunneling Protocol Denial of Service Vulnerability (cisco-sa-20170322-l2tp)

A vulnerability in the Layer 2 Tunneling Protocol L2TP parsing function of Cisco IOS Software could allow an unauthenticated, remote attacker to cause an affected device to reload. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and a...

Cisco IOS XE Software Layer 2 Tunneling Protocol Denial of Service Vulnerability

A vulnerability in the Layer 2 Tunneling Protocol L2TP parsing function of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, an...

CVE-2017-3857

A vulnerability in the Layer 2 Tunneling Protocol L2TP parsing function of Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and Cisco IOS XE 3.1 through 3.18 could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient validation...

CVE-2017-3857

A vulnerability in the Layer 2 Tunneling Protocol L2TP parsing function of Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and Cisco IOS XE 3.1 through 3.18 could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient validation...

CVE-2017-3857

CVE-2017-3857 is a DoS vulnerability in Cisco IOS (12.0–12.4, 15.0–15.6) and IOS XE (3.1–3.18) caused by improper validation in the Layer 2 Tunneling Protocol (L2TP) parsing function. An unauthenticated, remote attacker can send crafted L2TP packets to trigger a device reload when the L2TP featur...

Cisco IOS and IOS XE Software Layer 2 Tunneling Protocol Denial of Service Vulnerability

A vulnerability in the Layer 2 Tunneling Protocol L2TP parsing function of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient validation of L2TP packets. An attacker could exploit this...

MikroTik RouterOS 'L2TP' Man-in-the-Middle Attack Vulnerability (Feb 2017)

MikroTik RouterOS is prone to a man in the middle attack vulnerability. SPDX-FileCopyrightText: 2017 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 =...

CVE-2016-10200

Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel before 4.8.14 allows local users to gain privileges or cause a denial of service use-after-free by making multiple bind system calls without properly ascertaining whether a socket has the SOCKZAPPED status, related to...

Code injection

The L2TP Client in MikroTik RouterOS versions 6.83.3 and 6.37.4 does not enable IPsec encryption after a reboot, which allows man-in-the-middle attackers to view transmitted data unencrypted and gain access to networks on the L2TP server by monitoring the packets for the transmitted data and...