{"id":"UBUNTU-CVE-2016-8578","details":"The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.","modified":"2026-02-04T04:30:57.719250Z","published":"2016-11-04T00:00:00Z","related":["USN-3125-1"],"upstream":["CVE-2016-8578"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-8578"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3125-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-8578"}],"affected":[{"package":{"name":"qemu","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/qemu@2.0.0+dfsg-2ubuntu1.30?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0+dfsg-2ubuntu1.30"}]}],"versions":["1.5.0+dfsg-3ubuntu5","1.5.0+dfsg-3ubuntu6","1.6.0+dfsg-2ubuntu1","1.6.0+dfsg-2ubuntu2","1.6.0+dfsg-2ubuntu3","1.6.0+dfsg-2ubuntu4","1.7.0+dfsg-2ubuntu1","1.7.0+dfsg-2ubuntu2","1.7.0+dfsg-2ubuntu3","1.7.0+dfsg-2ubuntu4","1.7.0+dfsg-2ubuntu5","1.7.0+dfsg-2ubuntu7","1.7.0+dfsg-2ubuntu8","1.7.0+dfsg-2ubuntu9","1.7.0+dfsg-3ubuntu1~ppa1","1.7.0+dfsg-3ubuntu1","1.7.0+dfsg-3ubuntu2","1.7.0+dfsg-3ubuntu3","1.7.0+dfsg-3ubuntu4","1.7.0+dfsg-3ubuntu5","1.7.0+dfsg-3ubuntu6","1.7.0+dfsg-3ubuntu7","2.0.0~rc1+dfsg-0ubuntu1","2.0.0~rc1+dfsg-0ubuntu2","2.0.0~rc1+dfsg-0ubuntu3","2.0.0~rc1+dfsg-0ubuntu3.1","2.0.0+dfsg-2ubuntu1","2.0.0+dfsg-2ubuntu1.1","2.0.0+dfsg-2ubuntu1.2","2.0.0+dfsg-2ubuntu1.3","2.0.0+dfsg-2ubuntu1.5","2.0.0+dfsg-2ubuntu1.6","2.0.0+dfsg-2ubuntu1.7","2.0.0+dfsg-2ubuntu1.8","2.0.0+dfsg-2ubuntu1.9","2.0.0+dfsg-2ubuntu1.10","2.0.0+dfsg-2ubuntu1.11","2.0.0+dfsg-2ubuntu1.13","2.0.0+dfsg-2ubuntu1.14","2.0.0+dfsg-2ubuntu1.15","2.0.0+dfsg-2ubuntu1.16","2.0.0+dfsg-2ubuntu1.17","2.0.0+dfsg-2ubuntu1.18","2.0.0+dfsg-2ubuntu1.19","2.0.0+dfsg-2ubuntu1.20","2.0.0+dfsg-2ubuntu1.21","2.0.0+dfsg-2ubuntu1.22","2.0.0+dfsg-2ubuntu1.24","2.0.0+dfsg-2ubuntu1.25","2.0.0+dfsg-2ubuntu1.26","2.0.0+dfsg-2ubuntu1.27","2.0.0+dfsg-2ubuntu1.28","2.0.0+dfsg-2ubuntu1.29"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-common"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-guest-agent"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-keymaps"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-kvm"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-aarch64"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-arm"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-common"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-mips"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-misc"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-ppc"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-sparc"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-system-x86"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-user"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-user-static"},{"binary_version":"2.0.0+dfsg-2ubuntu1.30","binary_name":"qemu-utils"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-8578.json"}},{"package":{"name":"qemu","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.6?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.5+dfsg-5ubuntu10.6"}]}],"versions":["1:2.3+dfsg-5ubuntu9","1:2.3+dfsg-5ubuntu10","1:2.4+dfsg-4ubuntu1","1:2.4+dfsg-4ubuntu2","1:2.4+dfsg-4ubuntu3","1:2.4+dfsg-5ubuntu3","1:2.5+dfsg-1ubuntu2","1:2.5+dfsg-1ubuntu3","1:2.5+dfsg-1ubuntu4","1:2.5+dfsg-1ubuntu5","1:2.5+dfsg-5ubuntu1","1:2.5+dfsg-5ubuntu2","1:2.5+dfsg-5ubuntu4","1:2.5+dfsg-5ubuntu6","1:2.5+dfsg-5ubuntu7","1:2.5+dfsg-5ubuntu10","1:2.5+dfsg-5ubuntu10.1","1:2.5+dfsg-5ubuntu10.2","1:2.5+dfsg-5ubuntu10.3","1:2.5+dfsg-5ubuntu10.4","1:2.5+dfsg-5ubuntu10.5"],"ecosystem_specific":{"binaries":[{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-block-extra"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-guest-agent"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-kvm"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-aarch64"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-arm"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-common"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-mips"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-misc"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-ppc"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-s390x"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-sparc"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-system-x86"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-user"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-user-binfmt"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-user-static"},{"binary_version":"1:2.5+dfsg-5ubuntu10.6","binary_name":"qemu-utils"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-8578.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}