Packages
- qemu - Machine emulator and virtualizer
Details
It was discovered that the UHCI controller implementation of QEMU could be
brought into an invalid state. An attacker inside the guest could possibly
use this issue to cause QEMU to crash, resulting in a denial of service.
(CVE-2024-8354)
It was discovered that QEMU incorrectly handled memory during certain VNC
operations. An remote attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2025-11234)
It was discovered that the e1000 network device implementation of QEMU
could be made to write out of bounds. An attacker inside the guest could
possibly use this issue to cause QEMU to crash, resulting in a denial of
service, or possibly execute arbitrary code. This issue only affected
Ubuntu 24.04 LTS and Ubuntu 25.10. (
It was discovered that the UHCI controller implementation of QEMU could be
brought into an invalid state. An attacker inside the guest could possibly
use this issue to cause QEMU to crash, resulting in a denial of service.
(CVE-2024-8354)
It was discovered that QEMU incorrectly handled memory during certain VNC
operations. An remote attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2025-11234)
It was discovered that the e1000 network device implementation of QEMU
could be made to write out of bounds. An attacker inside the guest could
possibly use this issue to cause QEMU to crash, resulting in a denial of
service, or possibly execute arbitrary code. This issue only affected
Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2025-12464)
It was discovered that the virtio-crypto device implementation of QEMU did
not limit the length of a certain path input. An attacker inside the guest
could possibly use this issue to cause QEMU to consume large amount of
memory, resulting in a denial of service. This issue only affected Ubuntu
24.04 LTS and Ubuntu 25.10. (CVE-2025-14876)
It was discovered that the KVM Xen guest support of QEMU could be made to
read out of bounds. An attacker inside the guest could possibly use this
issue to cause QEMU to crash, resulting in a denial of service. This issue
only affected Ubuntu 24.04 LTS and Ubuntu 25.10. (CVE-2026-0665)
Update instructions
After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
Reduce your security exposure
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