Out-of-bounds Read in Qemu

CVE-2018-7550

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.

Vulnerability class: Buffer Overflow

EPSS: 0.006 (45.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-7550?
CVE-2018-7550 is a high-severity vulnerability in Qemu, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2018-03-01.
How severe is CVE-2018-7550?
High severity. CVSS v3 base score is 8.8 out of 10.