CVE-2018-12617
HIGH7.5EPSS 11.7%qemu - security update
Published: 6/21/2018Modified: 4/28/2026
Also known as:DEBIAN-CVE-2018-12617
Description
qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.
Affected packages (2)
- Debian/qemufrom 0, < 1:3.1+dfsg-1
- Debian/qemufrom 0, < 1:2.1+dfsg-12+deb8u10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |