USN-5050-1: Linux kernel vulnerabilities

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. CVE-2020-26558, CVE-2021-0129 Michael Brown discovered that the Xen netback driver in the Linux kernel did...

USN-5050-1 linux-aws-5.8, linux-azure-5.8, linux-gcp-5.8, linux-oracle-5.8 vulnerabilities

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. CVE-2020-26558, CVE-2021-0129 Michael Brown discovered that the Xen netback driver in the Linux kernel did...

Linux net/nfc/llcp_sock.c DoS

The vulnerability in the net/nfc/llcpsock.c component of the Linux operating system is related to the assignment of a null pointer. Exploiting this vulnerability could allow an attacker to cause a service failure by calling the getsockname function after a failed bind attempt for example, when...

USN-5045-1: Linux kernel vulnerabilities

Norbert Slusarek discovered that the CAN broadcast manger bcm protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information kernel memory. CVE-2021-34693 It was discovered that the bluetooth...

USN-5046-1: Linux kernel vulnerabilities

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. CVE-2020-26558, CVE-2021-0129 Michael Brown discovered that the Xen netback driver in the Linux kernel did...

USN-5046-1 linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.11, linux-kvm, linux-oracle, linux-raspi vulnerabilities

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. CVE-2020-26558, CVE-2021-0129 Michael Brown discovered that the Xen netback driver in the Linux kernel did...

Breaking the NFC chips in tens of millions of smart phones, and a few PoS systems

This second post is a companion to the DEF CON 29 video. Starts at 25:43 here. About a year ago I did some research into adding new capabilities to Samsung’s NFC chips in their smartphones, by bypassing their signature protection and applying code patches. This allowed me to add custom NFC tag...

Ubuntu: Security Advisory (USN-5044-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

Huawei EMUI/Magic UI NFC-based connection authentication vulnerability

Huawei Emui is an Android-based mobile operating system. Huawei Magic UI is the operating system for Honor phones. Huawei EMUI/Magic UI has a security vulnerability that can be exploited by attackers to cause kernel code execution...

Denial Of Service (DoS)

linux-kvm:bionic is vulnerable to denial of service.Use After Free vulnerability in nfc sockets in the Linux Kernel allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAPNETRAW capability...

CVE-2021-38208

A flaw was found in the Linux kernels NFC implementation, A NULL pointer dereference and BUG leading to a denial of service can be triggered by a local unprivileged user causing a kernel panic. Mitigation Mitigation for this issue is either not available or the currently available options does no...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9404)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9404 advisory. - seqfile: disallow extremely large seq buffer allocations Eric Sandeen Orabug: 33135632 CVE-2021-33909 - Bluetooth: fix the erroneous flushwork...

Breaking the Android Bootloader on the Qualcomm Snapdragon 660

This post is a companion to the DEF CON 29 video available here. A few months ago I purchased an Android phone to do some research around a specific series of NFC chips, which required me to gain root access to the device in order to fully access its hardware capabilities. Gaining root access on...

EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-2272)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - The kernel package contains the Linux kernel vmlinuz, the core of any Linux operating system. The kernel handles the basic functions of the...

DEBIAN-CVE-2021-38208

net/nfc/llcpsock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service NULL pointer dereference and BUG by making a getsockname call after a certain type of failure of a bind call...

CVE-2021-38208

net/nfc/llcpsock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service NULL pointer dereference and BUG by making a getsockname call after a certain type of failure of a bind call...

CVE-2021-38208: NULL Pointer Dereference

net/nfc/llcpsock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service NULL pointer dereference and BUG by making a getsockname call after a certain type of failure of a bind call...

NSA issues advice for securing wireless devices

By releasing an information sheet that provides guidance on securing wireless devices while in public pdf—for National Security System, Department of Defense, and Defense Industrial Base teleworkers—the NSA has provided useful information on malicious techniques used by cyber actors, and ways to...

PUB-A-168799695

In the NXP NFC firmware, there is a possible insecure firmware update due to a logic error. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation...

NSA Warns Public Networks are Hacker Hotbeds

The U.S. National Security Agency is offering advice to security teams looking for wireless best practices to protect corporate networks and personal devices. The recommendations, while pedestrian in scope, do offer system administrators a solid cheat sheet to share with their work-from-home crow...