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Description
An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.
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[{"vendor":"Red Hat","product":"Red Hat OpenStack Services on OpenShift 18.0","defaultStatus":"affected","cpes":["cpe:/a:redhat:openstack:18.0::el9"]},{"vendor":"Red Hat","product":"Red Hat OpenStack Platform 13 (Queens)","defaultStatus":"affected","cpes":["cpe:/a:redhat:openstack:13"]},{"vendor":"Red Hat","product":"Red Hat OpenStack Platform 16.2","defaultStatus":"affected","cpes":["cpe:/a:redhat:openstack:16.2"]},{"vendor":"Red Hat","product":"Red Hat OpenStack Platform 17.1","defaultStatus":"affected","cpes":["cpe:/a:redhat:openstack:17.1"]},{"vendor":"Red Hat","product":"Red Hat OpenStack Platform 18.0","defaultStatus":"affected","cpes":["cpe:/a:redhat:openstack:18.0"]}]
An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img without a format restriction, resulting in an unsafe image resize operation that could destroy data on the host system. Only compute nodes using the Flat image backend (usually configured with use_cow_images=False) are affected.
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