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Some fixes available 5 of 6
Xen 3.3.x through 4.5.x does not properly restrict write access to the host MSI message data field, which allows local x86 HVM guest administrators to cause a denial of service (host interrupt handling confusion) via...
3 affected packages
qemu, qemu-kvm, xen
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
| xen | — | — | — | — |
The slirp_smb function in net/slirp.c in QEMU 2.3.0 and earlier creates temporary files with predictable names, which allows local users to cause a denial of service (instantiation failure) by creating /tmp/qemu-smb.*-* files...
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a denial of service (out-of-bounds write and guest crash) or possibly execute arbitrary code via the (1)...
4 affected packages
qemu, virtualbox, qemu-kvm, xen
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| virtualbox | — | — | — | — |
| qemu-kvm | — | — | — | — |
| xen | — | — | — | — |
Some fixes available 2 of 4
The (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality in QEMU 1.0 through 2.1.3 have multiple interpretations of a function's return value, which allows guest OS users to cause a host OS denial of service (memory...
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
Some fixes available 6 of 8
QEMU, as used in Xen 3.3.x through 4.5.x, does not properly restrict access to PCI command registers, which might allow local HVM guest users to cause a denial of service (non-maskable interrupt and host crash) by disabling the...
4 affected packages
qemu, qemu-kvm, xen, xen-3.3
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
| xen | — | — | — | — |
| xen-3.3 | — | — | — | — |
The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
Heap-based buffer overflow in the Cirrus VGA emulator (hw/display/cirrus_vga.c) in QEMU before 2.2.0 allows local guest users to execute arbitrary code via vectors related to blit regions. NOTE: this vulnerability exists because...
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
The host_from_stream_offset function in arch_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
The sosendto function in slirp/udp.c in QEMU before 2.1.2 allows local users to cause a denial of service (NULL pointer dereference) by sending a udp packet with a value of 0 in the source port and address, which triggers access...
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
The VGA emulator in QEMU allows local guest users to read host memory by setting the display to a high resolution.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |