Clarifying the behavior of mandatory ASLR

Last week, the CERT/CC published an advisory describing some unexpected behavior they observed when enabling system-wide mandatory Address Space Layout Randomization ASLR using Windows Defender Exploit Guard WDEG and EMET on Windows 8 and above. In this blog post, we will explain the configuratio...

US-CERT Warns of ASLR Implementation Flaw In Windows

The U.S. Computer Emergency Readiness Team is warning of a vulnerability in Microsoft’s implementation of Address Space Layout Randomization that affects Windows 8, Windows 8.1 and Windows 10. The vulnerability could allow a remote attacker to take control of an affected system. Microsoft said it...

Linux kernel information disclosure vulnerability (CNVD-2017-33322)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. The waitid implementation of kernel/exit.c in the Linux kernel provides unintended access to Rusage data structures,...

Windows Server 2012 September 2017 Security Updates

The remote Windows host is missing security update 4038786 or cumulative update 4038799. It is, therefore, affected by multiple vulnerabilities : - A race condition that could lead to a remote code execution vulnerability exists in NetBT Session Services when NetBT fails to maintain certain...

KB4038783: Windows 10 Version 1511 September 2017 Cumulative Update

The remote Windows host is missing security update 4038783. It is, therefore, affected by multiple vulnerabilities : - A race condition that could lead to a remote code execution vulnerability exists in NetBT Session Services when NetBT fails to maintain certain sequencing requirements...

Microsoft Edge Information Disclosure Vulnerability

An information disclosure vulnerability for Microsoft Edge exists as a result of how strings are validated in specific scenarios, which can allow an attacker to read sensitive data from memory and thereby potentially bypass Address Space Layout Randomization ASLR. By itself, this vulnerability do...

Microsoft Windows Server 2012 Multiple Vulnerabilities (KB4025331)

This host is missing a critical security update according to Microsoft KB4025331 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 ifdescription...

UBUNTU-CVE-2017-10916

The vCPU context-switch implementation in Xen through 4.8.x improperly interacts with the Memory Protection Extensions MPX and Protection Key PKU features, which makes it easier for guest OS users to defeat ASLR and other protection mechanisms, aka XSA-220...

CVE-2017-1000375

NetBSD maps the run-time link-editor ld.so directly below the stack region, even if ASLR is enabled, this allows attackers to more easily manipulate memory leading to arbitrary code execution. This affects NetBSD 7.1 and possibly earlier versions...

Security update for the Windows Kernel information disclosure vulnerability in Windows Server 2008: August 8, 2017

Security update for the Windows Kernel information disclosure vulnerability in Windows Server 2008: August 8, 2017 Summary An information disclosure vulnerability exists when the Windows kernel fails to properly initialize a memory address, allowing an attacker to retrieve information that could...

Multiple Quick Heal Product Security Bypass Vulnerabilities

Quick Heal Internet Security, Quick Heal Total Security and Quick Heal AntiVirus Pro are antivirus programs from Quick Heal India. A security vulnerability exists in the PE file in several Quick Heal products due to the program's failure to use the ASLR/DEP protection mechanism. An attacker can...

CVE-2017-8776

Quick Heal Internet Security 10.1.0.316, Quick Heal Total Security 10.1.0.316, and Quick Heal AntiVirus Pro 10.1.0.316 have approximately 165 PE files in the default installation that do not use ASLR/DEP protection mechanisms that provide sufficient defense against directed attacks against the...

Shadow Brokers Fix for IBM Lotus Domino Released

IBM has released a patch for Lotus Domino to plug a security flaw which was disclosed in the latest Shadow Broker revelations. Lotus Domino includes an IMAP server. IMAP or Internet Message Access Protocol is an Internet standard protocol used by e-mail clients to retrieve e-mail messages from th...

Microsoft Windows 'libjpeg' Information Disclosure Vulnerability (KB4015383)

This host is missing an important security update according to Microsoft Security update KB4015383 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:...

DEBIAN-CVE-2015-2877

Kernel Samepage Merging KSM in the Linux kernel 2.6.32 through 4.x does not prevent use of a write-timing side channel, which allows guest OS users to defeat the ASLR protection mechanism on other guest OS instances via a Cross-VM ASL INtrospection CAIN attack. NOTE: the vendor states "Basically ...

The ASLR protection mechanism is a breakthrough attack technical analysis-vulnerability warning-the black bar safety net

Recently, hardware-based attacks have been started by Rowhammer memory leaks or bypass the address space layout randomization protection mechanisms to attack the system, these attacks are based on the processor's memory management unit MMU with a page table interactive interactive manner. These...

Mozilla: Excessive JIT code allocation allows bypass of ASLR and DEP (MFSA 2017-02)

JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Thunderbird 45.7, Firefox ESR 45.7, and Firefox 51...

Mozilla Firefox ESR < 45.7 Multiple Vulnerabilities

Binary data 9928.prm...

UBUNTU-CVE-2017-5375

JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Thunderbird 45.7, Firefox ESR 45.7, and Firefox 51...

CVE-2016-5328

VMware Tools 9.x and 10.x before 10.1.0 on OS X, when System Integrity Protection SIP is enabled, allows local users to determine kernel memory addresses and bypass the kASLR protection mechanism via unspecified vectors...