Fedora 23 : xen (2016-cc2916dcf4)

ARM guests may induce host asynchronous abort XSA-201, CVE-2016-9815, CVE-2016-9816, CVE-2016-9817, CVE-2016-9818 1399747 qemu: Divide by zero vulnerability in cirrusdocopy 1399055 CVE-2016-9921, CVE-2016-9922 Qemu: 9pfs: memory leakage via proxy/handle callbacks 1402278 qemu ioport array overflo...

x86: Mishandling of SYSCALL singlestep during emulation

ISSUE DESCRIPTION The typical behaviour of singlestepping exceptions is determined at the start of the instruction, with a DB trap being raised at the end of the instruction. SYSCALL and SYSRET, although we don't implement it behave differently because the typical behaviour allows userspace to...

DEBIAN-CVE-2015-8967

arch/arm64/kernel/sys.c in the Linux kernel before 4.0 allows local users to bypass the "strict page permissions" protection mechanism and modify the system-call table, and consequently gain privileges, by leveraging write access...

DEBIAN-CVE-2015-8966

arch/arm/kernel/sysoabi-compat.c in the Linux kernel before 4.4 allows local users to gain privileges via a crafted 1 FOFDGETLK, 2 FOFDSETLK, or 3 FOFDSETLKW command in an fcntl64 system call...

CVE-2015-8966

arch/arm/kernel/sysoabi-compat.c in the Linux kernel before 4.4 allows local users to gain privileges via a crafted 1 FOFDGETLK, 2 FOFDSETLK, or 3 FOFDSETLKW command in an fcntl64 system call...

Linux Kernel Local Elevation of Privilege Vulnerability (CNVD-2016-12203)

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the United States. A security vulnerability exists in the arch/arm/kernel/sysoabi-compat.c file in versions of Linux kernel prior to 4.4. A local attacker can exploit this vulnerability with the...

UBUNTU-CVE-2015-8967

arch/arm64/kernel/sys.c in the Linux kernel before 4.0 allows local users to bypass the "strict page permissions" protection mechanism and modify the system-call table, and consequently gain privileges, by leveraging write access...

UBUNTU-CVE-2015-8966

arch/arm/kernel/sysoabi-compat.c in the Linux kernel before 4.4 allows local users to gain privileges via a crafted 1 FOFDGETLK, 2 FOFDSETLK, or 3 FOFDSETLKW command in an fcntl64 system call...

Fedora Update for glibc-arm-linux-gnu FEDORA-2016-7befbe5e19

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 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...

CVE-2016-9818

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service host crash via vectors involving an asynchronous abort while at HYP...

CVE-2016-9815

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service host panic by sending an asynchronous abort...

CVE-2016-9817

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service host crash via vectors involving a 1 data or 2 prefetch abort with the ESREL2.EA bit set...

CVE-2016-9816

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service host crash via vectors involving an asynchronous abort while at EL2...

qemu ioport array overflow

ISSUE DESCRIPTION The code in qemu which implements ioport read/write looks up the specified ioport address in a dispatch table. The argument to the dispatch function is a uint32t, and is used without a range check, even though the table has entries for only 2^16 ioports. When qemu is used as a...

CVE-2015-8966

arch/arm/kernel/sysoabi-compat.c in the Linux kernel before 4.4 allows local users to gain privileges via a crafted 1 FOFDGETLK, 2 FOFDSETLK, or 3 FOFDSETLKW command in an fcntl64 system call...

ARM guests may induce host asynchronous abort

ISSUE DESCRIPTION Depending on how the hardware and firmware have been integrated, guest-triggered asynchronous aborts SError on ARMv8 may be received by the hypervisor. The current action is to crash the host. A guest might trigger an asynchronous abort when accessing memory mapped hardware in a...

Dlink DIR Routers - Unauthenticated HNAP Login Stack Buffer Overflow (Metasploit) Exploit

Exploit for hardware platform in category remote exploits This module requires Metasploit: http://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require 'msf/core' Payload working status: MIPS: - all valid payloads working the ones that we are able to send...

x86 segment base write emulation lacking canonical address checks

ISSUE DESCRIPTION Both writes to the FS and GS register base MSRs as well as the WRFSBASE and WRGSBASE instructions require their input values to be canonical, or a GP fault will be raised. When the use of those instructions by the hypervisor was enabled, the previous guard against GP faults havi...

qemu incautious about shared ring processing

ISSUE DESCRIPTION The compiler can emit optimizations in qemu which can lead to double fetch vulnerabilities. Specifically data on the rings shared between qemu and the hypervisor which the guest under control can obtain mappings of can be fetched twice during which time the guest can alter the...

x86 null segments not always treated as unusable

ISSUE DESCRIPTION The Xen x86 emulator erroneously failed to consider the unusability of segments when performing memory accesses. The intended behaviour is as follows: The user data segment %ds, %es, %fs and %gs selectors may be NULL in 32-bit to prevent access. In 64-bit, NULL has a special...