qemu qemu 6.2.0 vulnerabilities and exploits

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187

VMScore

A stack-buffer-overflow was found in QEMU in the NVME component. The flaw lies in nvme_changed_nslist() where a malicious guest controlling certain input can read out of bounds memory. A malicious user could use this flaw leading to disclosure of sensitive information.

Qemu Qemu 6.2.0 Qemu Qemu

1 Github repository

445

VMScore

A flaw was found in the virtio-net device of QEMU. This flaw was inadvertently introduced with the fix for CVE-2021-3748, which forgot to unmap the cached virtqueue elements on error, leading to memory leakage and other unexpected results. Affected QEMU version: 6.2.0.

Qemu Qemu 6.2.0 Debian Debian Linux 11.0

436

VMScore

A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions before 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to ...

Qemu Qemu 6.1.0 Redhat Enterprise Linux 8.0

187

VMScore

A flaw was found in the vhost-vsock device of QEMU. In case of error, an invalid element was not detached from the virtqueue before freeing its memory, leading to memory leakage and other unexpected results. Affected QEMU versions <= 6.2.0.

Qemu Qemu Debian Debian Linux 9.0 Debian Debian Linux 10.0

410

VMScore

An out-of-bounds write flaw was found in the UAS (USB Attached SCSI) device emulation of QEMU in versions before 6.2.0-rc0. The device uses the guest supplied stream number unchecked, which can lead to out-of-bounds access to the UASDevice->data3 and UASDevice->status3 fiel...

Qemu Qemu Debian Debian Linux 9.0 Debian Debian Linux 10.0 Debian Debian Linux 11.0

409

VMScore

QEMU does not properly restrict write access to the PCI config space for certain PCI pass-through devices, which might allow local x86 HVM guests to gain privileges, cause a denial of service (host crash), obtain sensitive information, or possibly have other unspecified impact vi...

801

VMScore

A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support prior to 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process insi...

356

VMScore

A missing authorization flaw was found in the libvirt API responsible for changing the QEMU agent response timeout. This flaw allows read-only connections to adjust the time that libvirt waits for the QEMU guest agent to respond to agent commands. Depending on the timeout value t...

Redhat Libvirt

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