| Name | CVE-2016-9916 |
| Description | Memory leak in hw/9pfs/9p-proxy.c in QEMU (aka Quick Emulator) allows local privileged guest OS users to cause a denial of service (host memory consumption and possibly QEMU process crash) by leveraging a missing cleanup operation in the proxy backend. |
| 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-1497-1 |
| Debian Bugs | 847496 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| qemu (PTS) | bullseye | 1:5.2+dfsg-11+deb11u3 | fixed |
| bullseye (security) | 1:5.2+dfsg-11+deb11u2 | fixed |
| bookworm | 1:7.2+dfsg-7+deb12u7 | fixed |
| trixie | 1:9.1.1+ds-2 | fixed |
| sid | 1:9.1.1+ds-5 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| qemu | source | jessie | 1:2.1+dfsg-12+deb8u7 | | DLA-1497-1 | |
| qemu | source | (unstable) | 1:2.8+dfsg-1 | | | 847496 |
| qemu-kvm | source | (unstable) | (unfixed) | | | |
Notes
[wheezy] - qemu <no-dsa> (Minor issue, virtfs-proxy-helper not present)
[wheezy] - qemu-kvm <no-dsa> (Minor issue, virtfs-proxy-helper not present)
https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg03278.html
Fixed by: http://git.qemu.org/?p=qemu.git;a=commit;h=898ae90a44551d25b8e956fd87372d303c82fe68 (v2.8.0-rc2)
Proxy filesystem driver introduced in: http://git.qemu.org/?p=qemu.git;a=commit;h=4c793dda22213a7aba8e4d9a814e8f368a5f8bf7 (v1.0-rc0)
https://www.openwall.com/lists/oss-security/2016/12/06/11