Integer overflow

Integer overflow in the bhyve hypervisor in FreeBSD 10.1, 10.2, 10.3, and 11.0 when configured with a large amount of guest memory, allows local users to gain privilege via a crafted device descriptor...

CVE-2016-1889

The CVE-2016-1889 entry describes an integer overflow in bhyve (FreeBSD hypervisor) when a guest is configured with more than about 3GB of memory. A crafted device descriptor could allow a local attacker to gain privileges by exploiting bounds-checking overflow in memory accesses by device emulat...

[SECURITY] Fedora 25 Update: xen-4.7.1-7.fc25

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

XenServer 7 Host Crash while starting multiple Virtual Machine

XenServer 7 Hosts crashes with below call traces while trying to start multiple vGPU attached Virtual Machines. The following trace can be found in xen.log in the crash folder /var/log/crash: XEN 101632.198343 ---- Xen-4.6.1-xs128153 x8664 debug=n Not tainted ----XEN 101632.198344 CPU: 5XEN...

Lifting the (Hyper) Visor: Bypassing Samsung’s Real-Time Kernel Protection

Posted by Gal Beniamini, Project Zero Traditionally, the operating system’s kernel is the last security boundary standing between an attacker and full control over a target system. As such, additional care must be taken in order to ensure the integrity of the kernel. First, when a system boots, t...

spice security update

CentOS Errata and Security Advisory CESA-2017:0253 An update for spice-server is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed...

Google Android - rkp_set_init_page_ro RKP Memory Corruption

Google Android - rkpsetinitpagero RKP Memory Corruption Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=984 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the...

Google Android - rkp_set_init_page_ro RKP Memory Corruption Exploit

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=984 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS...

Xen SYSCALL singlestep Handling Privilege Escalation (XSA-204)

According to its self-reported version number, the Xen hypervisor installed on the remote host is missing a security update. It is, therefore, affected by a privilege elevation vulnerability in the instruction emulator when handling SYSCALL by single-stepping applications. This is due to incorrec...

Xen CMPXCHG8B Emulation Information Disclosure (XSA-200)

According to its self-reported version number, the Xen hypervisor installed on the remote host is missing a security update. It is, therefore, affected by an information disclosure vulnerability due to a flaw in the x86 instruction CMPXCHG8B when handling prefixes. This is triggered because legac...

Xen Intel VMX hvmemul_vmfunc() NULL Pointer Dereference DoS (XSA-203)

According to its self-reported version number, the Xen hypervisor installed on the remote host is missing a security update. It is, therefore, affected by a NULL pointer dereference flaw due to a failure to utilize necessary NULL checks before doing indirect function calls through the hvmemulvmfu...

Google Android - cfp_ropp_new_key_reenc and cfp_ropp_new_key RKP Memory Corruption Exploit

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=979 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS...

Google Android - 'cfp_ropp_new_key_reenc' / 'cfp_ropp_new_key' RKP Memory Corruption

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=979 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS kernel running in EL1 remains protected from exploit...

Google Android - Unprotected MSRs in EL1 RKP Privilege Escalation

Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=980 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS kernel running in EL1 remains protected from exploit...

Google Android - RKP EL1 Code Loading Bypass Exploit

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=981 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS...

Google Android - cfp_ropp_new_key_reenc cfp_ropp_new_key RKP Memory Corruption

Google Android - cfproppnewkeyreenc cfproppnewkey RKP Memory Corruption Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=979 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to...

Google Android - Unprotected MSRs in EL1 RKP Privilege Escalation Exploit

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=980 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS...

Google Android - RKP Information Disclosure via s2-remapping Physical Ranges

Google Android - RKP Information Disclosure via s2-remapping Physical Ranges Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=982 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant...

Google Android - RKP Information Disclosure via s2-remapping Physical Ranges Exploit

Exploit for Android platform in category dos / poc Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=982 As part of Samsung KNOX, Samsung phones include a security hypervisor called RKP Real-time Kernel Protection, running in EL2. This hypervisor is meant to ensure that the HLOS...

ALPINE-CVE-2016-10025

VMFUNC emulation in Xen 4.6.x through 4.8.x on x86 systems using AMD virtualization extensions aka SVM allows local HVM guest OS users to cause a denial of service hypervisor crash by leveraging a missing NULL pointer check...