CVE-2015-1779

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.

RHSA-2015:1931 — Red Hat Security Advisory: qemu-kvm-rhev security update

qemu: vnc: insufficient resource limiting in VNC websockets decoder

RHSA-2015:1943 — Red Hat Security Advisory: qemu-kvm security update

qemu: vnc: insufficient resource limiting in VNC websockets decoder

USN-2608-1 — qemu, qemu-kvm vulnerabilities

Affected: Ubuntu:14.04:LTS: qemu

Jason Geffner discovered that QEMU incorrectly handled the virtual floppy driver. This issue is known as VENOM. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2015-3456)

Daniel P. Berrange discovered that QEMU incorrectly handled VNC websockets. A remote attacker could use this issue to cause QEMU to consume memory, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 14.10 and Ubuntu 15.04. (CVE-2015-1779)

Jan Beulich discovered that QEMU, when used with Xen, didn't properly restrict access to PCI command registers. A malicious guest could use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2015-2756)

Most recent entries from all

CVE-2015-1779

RHSA-2015:1931 — Red Hat Security Advisory: qemu-kvm-rhev security update

RHSA-2015:1943 — Red Hat Security Advisory: qemu-kvm security update

USN-2608-1 — qemu, qemu-kvm vulnerabilities