CVE-2017-7471

Aliases:DEBIAN-CVE-2017-7471
Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 09 Jul 2018, 14:00
Last modified:05 Aug 2024, 16:04

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9 CRITICAL
v3.1 (nvd)
EPSS Score
0.85% LOW
1% probability +0.29%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jul 2018, 14:00
Published
Vulnerability first disclosed
05 Aug 2024, 16:04
Last Modified
Vulnerability information updated

Description

Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System (9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.7AV:A/AC:L/Au:S/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.85%• Percentile: 57%

Techniques & Countermeasures

  • CWE-732•Incorrect Permission Assignment for Critical Resource

    The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Systems

  • debian•qemu

    < 1:2.8+dfsg-5 | < 1:2.8+dfsg-5 | < 1:2.8+dfsg-5 | < 1:2.8+dfsg-5

  • qemu•qemu

    ≤ 2.8.1.1 | 2.9.0:rc0 | 2.9.0:rc1 | 2.9.0:rc2 | 2.9.0:rc3 | 2.9.0:rc4

References (6)