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Some fixes available 2 of 3
The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 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...
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 1 of 2
A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an...
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 3 of 4
hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | Fixed |
| qemu-kvm | — | — | — | Not in release |
Some fixes available 3 of 4
The mode4and5 write functions in hw/display/cirrus_vga.c in Qemu allow local OS guest privileged users to cause a denial of service (out-of-bounds write access and Qemu process crash) via vectors related to dst calculation.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | Not affected | Not affected |
| qemu-kvm | — | — | Not in release | Not in release |
Some fixes available 1 of 2
Qemu through 2.10.0 allows remote attackers to cause a memory leak by triggering slow data-channel read operations, related to io/channel-websock.c.
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 3 of 4
Race condition in the v9fs_xattrwalk function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | Not affected | Not affected |
| qemu-kvm | — | — | Not in release | Not in release |
Some fixes available 2 of 3
Integer overflow in the load_multiboot function in hw/i386/multiboot.c in QEMU (aka Quick Emulator) allows local guest OS users to execute arbitrary code on the host via crafted multiboot header address values, which trigger an...
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | Not affected | Not affected |
| qemu-kvm | — | — | Not in release | Not in release |
Use-after-free vulnerability in the sofree function in slirp/socket.c in QEMU (aka Quick Emulator) allows attackers to cause a denial of service (QEMU instance crash) by leveraging failure to properly clear ifq_so from pending packets.
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 1 of 4
QEMU (aka Quick Emulator), when built with the VGA display emulator support, allows local guest OS privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) via vectors involving display update.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |
The vga display update in mis-calculated the region for the dirty bitmap snapshot in case split screen mode is used causing a denial of service (assertion failure) in the cpu_physical_memory_snapshot_get_dirty function.
2 affected packages
qemu, qemu-kvm
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| qemu | — | — | — | — |
| qemu-kvm | — | — | — | — |