CVE-2018-12617
qemu - security update
7.5
HIGH
CVSS 3.1
EPSS 11.7%
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.
How to fix CVE-2018-12617
To remediate CVE-2018-12617, upgrade the affected package to a fixed version below.
- —upgrade to 1:3.1+dfsg-1 or later
- —upgrade to 1:2.1+dfsg-12+deb8u10 or later
Is CVE-2018-12617 being exploited?
Moderate — EPSS is 11.7%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 1:3.1+dfsg-1
- from 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 |