CVE-2018-7550
qemu - security update
8.8
HIGH
CVSS 3.1
EPSS 0.08%
Description
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.
How to fix CVE-2018-7550
To remediate CVE-2018-7550, upgrade the affected package to a fixed version below.
- —upgrade to 1:2.12~rc3+dfsg-1 or later
- —upgrade to 1.1.2+dfsg-6+deb7u25 or later
- —upgrade to 1.1.2+dfsg-6+deb7u25 or later
Is CVE-2018-7550 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1:2.12~rc3+dfsg-1
- from 0, < 1.1.2+dfsg-6+deb7u25
- from 0, < 1.1.2+dfsg-6+deb7u25
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |