Windows 8.1 kernel exploit—CVE-2 0 1 4-4 1 1 3 vulnerability analysis-vulnerability warning-the black bar safety net

! 1. Case description: 2 0 1 4 years 1 0 month 1 4 day, CrowdStrike and FireEye, two IT companies each publish a blog post, in which are invariably introduced a Windows-based system to the new kernel privilege elevation vulnerability. CrowdStrike, the company mentioned in the article: they are on...

Kaspersky Internet Security KLIF Driver NtUserCreateWindowEx_HANDLER Denial of Service

Summary A denial of service vulnerability exists in the syscall filtering functionality of the Kaspersky Internet Security KLIF driver. A specially crafted native api call request can cause a access violation exception in KLIF kernel driver resulting in local denial of service. An attacker can ru...

[SECURITY] Fedora 23 Update: qemu-2.4.1-11.fc23

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

[SECURITY] Fedora 22 Update: qemu-2.3.1-16.fc22

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

[SECURITY] Fedora 24 Update: qemu-2.6.0-4.fc24

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

Microsoft Windows - Custom Font Disable Policy Bypass

Microsoft Windows - Custom Font Disable Policy Bypass Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=779 Windows: Custom Font Disable Policy Bypass Platform: Windows 10 Only Class: Security Feature Bypass Summary: It’s possible to bypass the ProcessFontDisablePolicy check in...

Microsoft Windows - Kernel ATMFD.dll NamedEscape 0x250C Pool Corruption (MS16-074)

Exploit for windows platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=785 The Adobe Type Manager Font Driver ATMFD.DLL responsible for handling PostScript and OpenType fonts in the Windows kernel provides a channel of communication with user-mode...

Microsoft Windows Kernel - ATMFD.dll NamedEscape 0x250C Pool Corruption (MS16-074)

Microsoft Windows Kernel - ATMFD.dll NamedEscape 0x250C Pool Corruption MS16-074 Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=785 The Adobe Type Manager Font Driver ATMFD.DLL responsible for handling PostScript and OpenType fonts in the Windows kernel provides a channel of...

[SECURITY] Fedora 23 Update: qemu-2.4.1-10.fc23

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

[SECURITY] Fedora 24 Update: qemu-2.6.0-3.fc24

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

[SECURITY] Fedora 22 Update: qemu-2.3.1-14.fc22

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

xen-kernel -- x86 software guest page walk PS bit handling flaw

The Xen Project reports: The Page Size PS page table entry bit exists at all page table levels other than L1. Its meaning is reserved in L4, and conditionally reserved in L3 and L2 depending on hardware capabilities. The software page table walker in the hypervisor, however, so far ignored that b...

[SECURITY] Fedora 23 Update: qemu-2.4.1-9.fc23

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

Security feature bypass

The User Mode Code Integrity UMCI implementation in Device Guard in Microsoft Internet Explorer 11 allows remote attackers to bypass a code-signing protection mechanism via unspecified vectors, aka "Internet Explorer Security Feature Bypass."...

CVE-2016-0188

The User Mode Code Integrity UMCI implementation in Device Guard in Microsoft Internet Explorer 11 allows remote attackers to bypass a code-signing protection mechanism via unspecified vectors, aka "Internet Explorer Security Feature Bypass."...

CVE-2016-0188

CVE-2016-0188 affects Internet Explorer 11 via the Device Guard UMCI component, enabling a remote attacker to bypass code-signing protections and run unsigned code. The vulnerability stems from UMCI policy validation weaknesses in IE’s User Mode Code Integrity, allowing code that should be blocke...

KLA10806 Multiple vulnerabilities in Microsoft Internet Explorer and Edge

Multiple serious vulnerabilities have been found in Microsoft Internet Explorer and Edge. Malicious users can exploit these vulnerabilities to execute arbitrary code, bypass security restrictions or obtain sensitive information. Below is a complete list of vulnerabilities 1. An improper memory...

[SECURITY] Fedora 22 Update: qemu-2.3.1-13.fc22

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

[SECURITY] Fedora 24 Update: qemu-2.5.0-10.fc24

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation. QEMU has two operating modes: Full system emulation. In this mode, QEMU emulates a full system for example a PC, including a processor and various peripherials. It can be used ...

I/O port access privilege escalation in x86-64 Linux

ISSUE DESCRIPTION IRET and POPF do not modify EFLAGS.IOPL when executed by code at a privilege level other than zero. Since PV Xen guests run at privilege level 3 for 64-bit ones; 32-bit ones run at privilege level 1, to compensate for this the context switching of EFLAGS.IOPL requires the guest ...