{"id":"UBUNTU-CVE-2021-3947","details":"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.","modified":"2025-09-08T16:46:50Z","published":"2022-02-18T18:15:00Z","upstream":["CVE-2021-3947"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3947"},{"type":"REPORT","url":"https://lore.kernel.org/qemu-devel/20211111153125.2258176-1-philmd@redhat.com/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-3947"}],"affected":[{"package":{"name":"qemu","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:6.2+dfsg-2ubuntu5?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:6.2+dfsg-2ubuntu5"}]}],"versions":["1:6.0+dfsg-2expubuntu1","1:6.0+dfsg-2expubuntu2","1:6.0+dfsg-2expubuntu4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"qemu","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-block-extra","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-guest-agent","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-arm","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-common","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-data","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-gui","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-mips","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-misc","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-ppc","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-s390x","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-sparc","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-x86","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-x86-microvm","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-system-x86-xen","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-user","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-user-binfmt","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-user-static","binary_version":"1:6.2+dfsg-2ubuntu5"},{"binary_name":"qemu-utils","binary_version":"1:6.2+dfsg-2ubuntu5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3947.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}