kernel: kvm: guest userspace to guest kernel write

A flaw was found in the way Linux kernel KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilegeCPL level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside...

PT-2019-5698

Name of the Vulnerable Software and Affected Versions Linux Kernel versions 3.13 through 5.4 Description An out-of-bounds memory write issue was found in the Linux Kernel's KVM hypervisor, related to the handling of the 'KVM GET EMULATED CPUID' ioctl2 request to get CPUID features emulated by the...

cPanel Input Validation Error Vulnerability (CNVD-2019-26343)

cPanel is a set of Web-based automated colocation platform from the US-based cPanel. The platform is primarily used to automate the management of websites and servers. An input validation error vulnerability exists in versions of cPanel prior to 64.0.21. The vulnerability stems from a web-based...

CVE-2019-2235

Buffer overflow occurs when emulated RPMB is used due to sector size assumptions in the TA rollback protection logic. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobil...

Nextcloud: Passcode Protection in Android Devices Can be Bypassed.

What is The Vulnerability? The Passcode can be bypassed by calling a MainLoginActivity which is com.owncloud.android.ui.activity.FileDisplayActivity , We have successfully bypassed the passcode and are redirected to the App's User Interface. of the user’s credentials: Android Version: 9 Non Roote...

Fedora 28 : xen (2018-a7862a75f5)

preemption checks bypassed in x86 PV MM handling XSA-264, CVE-2018-12891 1595959 x86: DB exception safety check can be triggered by a guest XSA-265, CVE-2018-12893 1595958 libxl fails to honour readonly flag on HVM emulated SCSI disks XSA-266, CVE-2018-12892 1595957 Note that Tenable Network...

The vulnerability of the Qemu hardware emulation’s load_multiboot function, related to writing beyond the buffer boundaries of memory, allows a attacker to trigger a service failure or execute arbitrary code.

The vulnerability of the loadmultiboot function in the hw/i386/multiboot.c file of the Qemu hardware emulation driver is related to an error that causes writing outside the allocated memory buffer during multi-boot operations. Exploiting this vulnerability allows a attacker to execute arbitrary...

CVE-2018-10853

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilegeCPL level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate...

SUSE SLES12 Security Update : xen (SUSE-SU-2018:2081-1)

This update for xen fixes the following issues: Security issues fixed : - CVE-2018-12891: Fix preemption checks bypass in x86 PV MM handling XSA-264 bsc1097521. - CVE-2018-12892: Fix libxl failure to honour readonly flag on HVM emulated SCSI disks XSA-266 bsc1097523. - CVE-2018-12893: Fix DB...

[SECURITY] [DSA 4236-1] xen security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4236-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff June 27, 2018 https://www.debian.org/security/faq -...

Kernel: kvm: use after free in complete_emulated_mmio

arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service use-after-free via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt...

The vulnerability of the QEMU hardware emulation software, which allows a hacker to trigger a service failure

The vulnerability of the emulatedapdufromguest function in the usb/dev-smartcard-reader.c file of the QEMU hardware emulation software, which supports emulation of CCID Card devices, is caused by a numerical overflow. Exploiting this vulnerability could allow an attacker, operating locally, to...

ALPINE-CVE-2017-5898

Integer overflow in the emulatedapdufromguest function in usb/dev-smartcard-reader.c in Quick Emulator Qemu, when built with the CCID Card device emulator support, allows local users to cause a denial of service application crash via a large Application Protocol Data Units APDU unit...

CVE-2017-5898

Integer overflow in the emulatedapdufromguest function in usb/dev-smartcard-reader.c in Quick Emulator Qemu, when built with the CCID Card device emulator support, allows local users to cause a denial of service application crash via a large Application Protocol Data Units APDU unit...

TrueOnline / Billion 5200W-T Router Unauthenticated Command Injection Exploit

TrueOnline is a major ISP in Thailand, and it distributes a customized version of the Billion 5200W-T router. This customized version has at least two command injection vulnerabilities, one authenticated and one unauthenticated, on different firmware versions. This Metasploit module will attempt ...

Cemu 1.6.4b - Information Leak + Buffer Overflow (Emulator Breakout) Vulnerability

Exploit for multiple platform in category local exploits For those who only care about one thing: the PoC is here. Mirror: https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/41021.zip Overview Cemu is a closed-source Wii U emulator developed by Exzap. New versio...

TrueOnline / Billion 5200W-T Router Unauthenticated Command Injection

TrueOnline is a major ISP in Thailand, and it distributes a customized version of the Billion 5200W-T router. This customized version has at least two command injection vulnerabilities, one authenticated and one unauthenticated, on different firmware versions. This module will attempt to exploit...

TrueOnline / ZyXEL P660HN-T v2 Router Authenticated Command Injection

TrueOnline is a major ISP in Thailand, and it distributes a customized version of the ZyXEL P660HN-T v2 router. This customized version has an authenticated command injection vulnerability in the remote log forwarding page. This can be exploited using the "supervisor" account that comes with a...

TrueOnline / ZyXEL P660HN-T v1 Router Unauthenticated Command Injection

TrueOnline is a major ISP in Thailand, and it distributes a customized version of the ZyXEL P660HN-T v1 router. This customized version has an unauthenticated command injection vulnerability in the remote log forwarding page. This module was tested in an emulated environment, as the author doesn'...

UBUNTU-CVE-2015-5162

The image parser in OpenStack Cinder 7.0.2 and 8.0.0 through 8.1.1; Glance before 11.0.1 and 12.0.0; and Nova before 12.0.4 and 13.0.0 does not properly limit qemu-img calls, which might allow attackers to cause a denial of service memory and disk consumption via a crafted disk image...