CVE-2018-7550

Advisory lineage Upstream: 0 Downstream: 22
Modified
Published: 01 Mar 2018, 00:00
Last modified:05 Aug 2024, 06:31

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
v3.1 (nvd)
EPSS Score
0.08% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

01 Mar 2018, 00:00
Published
Vulnerability first disclosed
05 Aug 2024, 06:31
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 4.6AV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.08%• Percentile: 24%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

    The product reads data past the end, or before the beginning, of the intended buffer.

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 17.10 | 18.04

  • debian•debian_linux

    7.0 | 8.0 | 9.0

  • qemu•qemu

    ≤ 2.11.1

  • redhat•enterprise_linux_desktop

    7.0

  • redhat•enterprise_linux_server

    7.0

  • redhat•enterprise_linux_server_aus

    7.6 | 7.7

  • redhat•enterprise_linux_server_eus

    7.5 | 7.6 | 7.7

  • redhat•enterprise_linux_server_tus

    7.6 | 7.7

  • redhat•enterprise_linux_workstation

    7.0

References (11)