QEMU: cirrus: OOB access when updating VGA display

Quick Emulator aka QEMU, when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service out-of-bounds access and QEMU process crash by leveraging incorrect region calculation when updating VGA display...

QEMU: i386: multiboot OOB access while loading kernel image

Quick Emulator QEMU, compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mhloadendaddr address is greater than the mhbssendaddr address. A user or process...

QEMU: cirrus: OOB access when updating VGA display

Quick Emulator aka QEMU, when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service out-of-bounds access and QEMU process crash by leveraging incorrect region calculation when updating VGA display...

DEBIAN-CVE-2018-10981

An issue was discovered in Xen through 4.10.x allowing x86 HVM guest OS users to cause a denial of service host OS infinite loop in situations where a QEMU device model attempts to make invalid transitions between states of a request...

QEMU: cirrus: OOB access when updating VGA display

Quick Emulator aka QEMU, when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service out-of-bounds access and QEMU process crash by leveraging incorrect region calculation when updating VGA display...

qemu: DoS via large option request

The Network Block Device NBD server in Quick Emulator QEMU, is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other...

QEMU: vga: OOB read access during display update

An out-of-bounds read access issue was found in the VGA display emulator built into the Quick emulator QEMU. It could occur while reading VGA memory to update graphics display. A privileged user/process inside guest could use this flaw to crash the QEMU process on the host resulting in denial of...

Moderate: Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update

An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 10.0 Newton, Red Hat OpenStack Platform 11.0 Ocata, Red Hat OpenStack Platform 12.0 Pike, Red Hat OpenStack Platform 8.0 Liberty, and Red Hat OpenStack Platform 9.0 Mitaka. Red Hat Product Security has rated this update a...

QEMU: VGA: reachable assert failure during display update

An assert failure issue was found in the VGA display emulator built into the Quick emulator QEMU. It could occur while updating graphics display, due to miscalculating region for dirty bitmap snapshot in split screen mode. A privileged user/process inside guest could use this flaw to crash the QE...

QEMU: Slirp: use-after-free when sending response

A use-after-free issue was found in the Slirp networking implementation of the Quick emulator QEMU. It occurs when a Socket referenced from multiple packets is freed while responding to a message. A user/process could use this flaw to crash the QEMU process on the host resulting in denial of...

Qemu: Out-of-bounds read in vga_draw_text routine

An out-of-bounds read access issue was found in the VGA emulator of QEMU. It could occur in vgadrawtext routine, while updating display area for a vnc client. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS...

Qemu: memory exhaustion through framebuffer update request message in VNC server

VNC server implementation in Quick Emulator QEMU was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A...

qemu: DoS via large option request

The Network Block Device NBD server in Quick Emulator QEMU, is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other...

QEMU: Slirp: use-after-free when sending response

A use-after-free issue was found in the Slirp networking implementation of the Quick emulator QEMU. It occurs when a Socket referenced from multiple packets is freed while responding to a message. A user/process could use this flaw to crash the QEMU process on the host resulting in denial of...

QEMU: vga: OOB read access during display update

An out-of-bounds read access issue was found in the VGA display emulator built into the Quick emulator QEMU. It could occur while reading VGA memory to update graphics display. A privileged user/process inside guest could use this flaw to crash the QEMU process on the host resulting in denial of...

[SECURITY] Fedora 28 Update: dolphin-emu-5.0-21.fc28

Dolphin is a Gamecube, Wii and Triforce the arcade machine based on the Gamecube emulator, which supports full HD video with several enhancements such as compatibility with all PC controllers, turbo speed, networked multiplaye r, and more. Most games run perfectly or with minor bugs...

[SECURITY] Fedora 27 Update: dolphin-emu-5.0-21.fc27

Dolphin is a Gamecube, Wii and Triforce the arcade machine based on the Gamecube emulator, which supports full HD video with several enhancements such as compatibility with all PC controllers, turbo speed, networked multiplaye r, and more. Most games run perfectly or with minor bugs...

[SECURITY] Fedora 26 Update: dolphin-emu-5.0-21.fc26

Dolphin is a Gamecube, Wii and Triforce the arcade machine based on the Gamecube emulator, which supports full HD video with several enhancements such as compatibility with all PC controllers, turbo speed, networked multiplaye r, and more. Most games run perfectly or with minor bugs...

QEMU Denial of Service Vulnerability (CNVD-2018-06394)

QEMU aka Quick Emulator is a set of simulation processor software developed by French programmer Fabrice Bellard. The software is fast and cross-platform. A security vulnerability exists in QEMU based on the Cirrus CLGD 54xx VGA Emulator support implementation. A local attacker could exploit this...

CVE-2018-7858

Quick Emulator aka QEMU, when built with the Cirrus CLGD 54xx VGA Emulator support, allows local guest OS privileged users to cause a denial of service out-of-bounds access and QEMU process crash by leveraging incorrect region calculation when updating VGA display...