| Name | CVE-2017-7493 |
| Description | Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System(9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing virtfs metadata files in mapped-file security mode. A guest user could use this flaw to escalate their privileges inside guest. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1035-1, DLA-1497-1, DLA-965-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| qemu (PTS) | buster | 1:3.1+dfsg-8+deb10u8 | fixed |
| buster (security) | 1:3.1+dfsg-8+deb10u10 | fixed | |
| bullseye (security), bullseye | 1:5.2+dfsg-11+deb11u2 | fixed | |
| bookworm | 1:7.2+dfsg-7+deb12u1 | fixed | |
| trixie | 1:8.1.0+ds-6 | fixed | |
| sid | 1:8.1.1+ds-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| qemu | source | wheezy | 1.1.2+dfsg-6+deb7u22 | DLA-1035-1 | ||
| qemu | source | jessie | 1:2.1+dfsg-12+deb8u7 | DLA-1497-1 | ||
| qemu | source | (unstable) | 1:2.8+dfsg-6 | |||
| qemu-kvm | source | wheezy | 1.1.2+dfsg-6+deb7u22 | DLA-965-1 | ||
| qemu-kvm | source | (unstable) | (unfixed) |
https://bugzilla.redhat.com/show_bug.cgi?id=1451709
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg03663.html