The (1) v9fs_create and (2) v9fs_lcreate functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid.

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The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

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Affected package information

Release Package Patched in
artful qemu 1:2.8+dfsg-3ubuntu3
devel qemu 1:2.8+dfsg-3ubuntu3
precise/esm qemu-kvm None
trusty qemu 2.0.0+dfsg-2ubuntu1.34
upstream qemu None
qemu-kvm None
xenial qemu 1:2.5+dfsg-5ubuntu10.14
yakkety qemu 1:2.6.1+dfsg-0ubuntu5.5
zesty qemu 1:2.8+dfsg-3ubuntu2.2


Release Package Reason
precise qemu-kvm ignored
qemu DNE
trusty qemu-kvm DNE
vivid/ubuntu-core qemu-kvm DNE
qemu DNE
vivid/stable-phone-overlay qemu-kvm DNE
qemu DNE
xenial qemu-kvm DNE
yakkety qemu-kvm DNE
zesty qemu-kvm DNE
artful qemu-kvm DNE
devel qemu-kvm DNE
precise/esm qemu DNE