MGASA-2016-0347 Updated kernel packages fixes security vulnerabilities

This update is based on the upstream 4.4.26 kernel and fixes at least theese security issues: A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write COW breakage of private read-only memory mappings. An unprivileged local user could use this flaw to ga...

UBUNTU-CVE-2016-5195

Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write COW feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW."...

SELinux W+X Protection Bypass via AIO

Exploit for linux platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=854 SELinux has a set of permissions that can be used to prevent processes from creating executable memory mappings that contain data controlled by the process PROCESSEXECMEM,...

Linux SELinux - W+X Protection Bypass via AIO

Linux SELinux - W+X Protection Bypass via AIO / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=854 SELinux has a set of permissions that can be used to prevent processes from creating executable memory mappings that contain data controlled by the process PROCESSEXECMEM,...

CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

UBUNTU-CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

CVE-2016-4480

CVE-2016-4480 affects Xen 4.6.x and earlier. The vulnerability in arch/x86/mm/guest_walk.c mishandles the PS bit in L3/L4 Page Tables, potentially enabling local guest OS users to gain privileges via a crafted memory mapping. Exploitation is local with low complexity; impact is privilege escalati...

CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

PT-2016-5972

Name of the Vulnerable Software and Affected Versions Xen versions 4.6.x and earlier Description The issue arises from the guest walk tables function in arch/x86/mm/guest walk.c, which does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels. This could...

CVE-2016-4480

The guestwalktables function in arch/x86/mm/guestwalk.c in Xen 4.6.x and earlier does not properly handle the Page Size PS page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory...

Microsoft Windows DirectX Graphics Kernel Subsystem Elevation of Privilege Vulnerability

Microsoft Windows is a series of operating systems released by the American company Microsoft. An elevation of privilege vulnerability exists in the Microsoft Windows DirectX graphics kernel subsystem dxgkrnl.sys, which arises from a program that fails to properly handle objects in memory and...

kernel: kvm: reporting emulation failures to userspace

It was found that reporting emulation failures to user space could lead to either a local CVE-2014-7842 or a L2-L1 CVE-2010-5313 denial of service. In the case of a local denial of service, an attacker must have access to the MMIO area or be able to access an I/O port. Please note that on certain...

ASUS Memory Mapping Driver (ASMMAP/ASMMAP64) - Physical Memory Read/Write

Exploit for windows platform in category dos / poc / Source: http://rol.im/asux/ ASUS Memory Mapping Driver ASMMAP/ASMMAP64: Physical Memory Read/Write PoC by slipstream/RoL - https://twitter.com/TheWack0lian - http://rol.im/chat/ The ASUS "Generic Function Service" includes a couple of drivers,...

ASUS Memory Mapping Driver (ASMMAPASMMAP64) - Physical Memory ReadWrite

ASUS Memory Mapping Driver ASMMAPASMMAP64 - Physical Memory ReadWrite / Source: http://rol.im/asux/ ASUS Memory Mapping Driver ASMMAP/ASMMAP64: Physical Memory Read/Write PoC by slipstream/RoL - https://twitter.com/TheWack0lian - http://rol.im/chat/ The ASUS "Generic Function Service" includes a...

ASUS Memory Mapping Driver (ASMMAP/ASMMAP64) - Physical Memory Read/Write

/ Source: http://rol.im/asux/ ASUS Memory Mapping Driver ASMMAP/ASMMAP64: Physical Memory Read/Write PoC by slipstream/RoL - https://twitter.com/TheWack0lian - http://rol.im/chat/ The ASUS "Generic Function Service" includes a couple of drivers, ASMMAP.sys / ASMMAP64.sys, the version resources...

kernel: integer overflow in fb_mmap

An integer overflow flaw was found in the way the Linux kernel's Frame Buffer device implementation mapped kernel memory to user space via the mmap syscall. A local user able to access a frame buffer device file /dev/fb could possibly use this flaw to escalate their privileges on the system...

OracleVM 2.2 : xen (OVMSA-2016-0012)

The remote OracleVM system is missing necessary patches to address critical security updates : - XSA-125: Limit XENDOMCTLmemorymapping hypercall to only process up to 64 GFNs or less Jan Beulich 20732412 CVE-2015-2752 - XSA-126: xen: limit guest control of PCI command register Jan Beulich 2073939...