Exploring malicious Windows drivers (Part 2): the I/O system, IRPs, stack locations, IOCTLs and more

This blog post is part of a multi-part series, and it is highly recommended to read the first entry here before continuing. As the second entry in our "Exploring malicious Windows drivers" series, we will continue where the first left off: Discussing the I/O system and IRPs. We will expand on the...

CVE-2021-47553

In the Linux kernel, the following vulnerability has been resolved: sched/scs: Reset task stack state in bringupcpu To hot unplug a CPU, the idle task on that CPU calls a few layers of C code before finally leaving the kernel. When KASAN is in use, poisoned shadow is left around for each of the...

CVE-2021-47553 sched/scs: Reset task stack state in bringup_cpu()

In the Linux kernel, the following vulnerability has been resolved: sched/scs: Reset task stack state in bringupcpu To hot unplug a CPU, the idle task on that CPU calls a few layers of C code before finally leaving the kernel. When KASAN is in use, poisoned shadow is left around for each of the...

WordPress plugin Happy Addons for Elementor 安全漏洞

WordPress and WordPress plugin are both products of the WordPress Foundation.WordPress is a blogging platform developed using the PHP language. The platform supports setting up personal blog sites on servers with PHP and MySQL.WordPress plugin is an application plugin. A security vulnerability...

SUSE SLED15: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2024:1102-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1102-1 advisory. - CVE-2023-28746: Register File Data Sampling bsc1221332 - CVE-2024-2193: Fixed GhostRace, a...

[SECURITY] Fedora 40 Update: ofono-2.5-1.fc40

oFono.org is a place to bring developers together around designing an infrastructure for building mobile telephony GSM/UMTS applications. oFono includes a high-level D-Bus API for use by telephony applications. oFono also includes a low-level plug-in API for integrating with telephony stacks,...

Fedora: Security Advisory (FEDORA-2024-c42ea059d0)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

ALPINE-CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

DEBIAN-CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

UBUNTU-CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

CVE-2023-46841 x86: shadow stack vs exceptions from emulation stubs

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

CVE-2023-46841

The Xen hypervisor is vulnerable to an issue involving Control-flow Enforcement Technology (CET) , specifically the Shadow Stacks (CET-SS) feature. When Xen intercepts certain memory accesses, it may replay instructions by filling and invoking a stub. If a replayed instruction raises an exception...

CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

CVE-2023-46841: Undefined Security Weakness

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

kernel: x86/mm: Randomize per-cpu entry area

A possible unauthorized memory access flaw was found in the Linux kernel cpuentryarea mapping of X86 CPU data to memory, where a user may guess the location of exception stacks or other important data. This issue could allow a local user to gain access to some important data with expected locatio...

SUSE CVE-2023-46841

Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses...

x86: shadow stack vs exceptions from emulation stubs

ISSUE DESCRIPTION Recent x86 CPUs offer functionality named Control-flow Enforcement Technology CET. A sub-feature of this are Shadow Stacks CET-SS. CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and...