MessageHistory

MessageHistory Version 3.0 Created Date: 08/20/2006 Updated Date: 09/25/2013 Please note: You can download the required file from the Citrix downloads website by visiting the following link: https://www.citrix.com/downloads/citrix-tools Description Sometimes Citrix Technical Support needs to...

WOW64!Hooks: WOW64 Subsystem Internals and Hooking Techniques

Microsoft is known for their backwards compatibility. When they rolled out the 64-bit variant of Windows years ago they needed to provide compatibility with existing 32-bit applications. In order to provide seamless execution regardless of application bitness, the WoW Windows on Windows system wa...

ShowStopper - Anti-Debug tricks exploration tool

The ShowStopper project is a tool to help malware researchers explore and test anti-debug techniques or verify debugger plugins or other solutions that clash with standard anti-debug methods. With this tool, you can attach a debugger to its process and research the debugger’s behavior for the...

[SECURITY] Fedora 32 Update: pngcheck-2.3.0-3.fc32

pngcheck verifies the integrity of PNG, JNG and MNG files by checking the internal 32-bit CRCs checksums and decompressing the image data; it can optionally dump almost all of the chunk-level information in the image in human-readable form. For example, it can be used to print the basic statist i...

[SECURITY] Fedora 33 Update: pngcheck-2.3.0-3.fc33

pngcheck verifies the integrity of PNG, JNG and MNG files by checking the internal 32-bit CRCs checksums and decompressing the image data; it can optionally dump almost all of the chunk-level information in the image in human-readable form. For example, it can be used to print the basic statist i...

nginx 1.5.10 'ngx_http_spdy_module' RCE Vulnerability

nginx is prone to a remote code execution RCE vulnerability in the ngxhttpspdymodule module. SPDX-FileCopyrightText: 2020 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 CP...

EulerOS Virtualization 3.0.2.2 : libffi (EulerOS-SA-2020-2186)

According to the version of the libffi package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability : - libffi requests an executable stack allowing attackers to more easily trigger arbitrary code execution by overwriting the stack. Plea...

Security Update for Microsoft Office 2013 (KB4486688) 32-Bit Edition

A security vulnerability exists in Microsoft Office 2013 32-Bit Edition that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves that vulnerability...

Fedora 31 : xen (2020-d46fe34349)

x86 pv: Crash when handling guest access to MSRMISCENABLE XSA-333, CVE-2020-25602 1881619 Missing unlock in XENMEMacquireresource error path XSA-334, CVE-2020-25598 1881616 race when migrating timers between x86 HVM vCPU-s XSA-336, CVE-2020-25604 1881618 PCI passthrough code reading back hardware...

The string component in the GNU C Library (aka glibc or libc6) through 2.28 when running on the x32 architecture incorrectly attempts to use a 64-bit register for size_t in assembly codes which can lead to a segmentation fault or possibly unspecified other impact as demonstrated by a crash in __memmove_avx_unaligned_erms in sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S during a memcpy.

...

A signal access-control issue was discovered in the Linux kernel before 5.6.5 aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs and the lack of scenarios where signals to a parent process present a substantial operational threat.

...

CVE-2020-25600

An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm either bitness ones. 32-bit x86 domain...

CVE-2020-25600

An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm either bitness ones. 32-bit x86 domain...

Out-of-bounds

An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm either bitness ones. 32-bit x86 domain...

CVE-2020-25600

An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm either bitness ones. 32-bit x86 domain...

CVE-2020-25600

An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm either bitness ones. 32-bit x86 domain...

CVE-2020-25600

The connected XSA-342 advisory provides concrete details for CVE-2020-25600: Xen 2-level event channel model mismanages the per-guest limit, causing 32-bit x86 domains (including Domain 0) to observe successful allocations that should fail, risking corruption of the shared info structure and enab...

CVE-2020-25600

An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm either bitness ones. 32-bit x86 domain...

Xen buffer overflow vulnerability (CNVD-2020-53819)

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen suffers from a buffer overflow...

out of bounds event channels available to 32-bit x86 domains

ISSUE DESCRIPTION The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm either bitness ones. 32-bit x86 domains can use only 1023 channels, due to limited space in their shared between guest and Xen...