CVE-2023-2861

Aliases:DEBIAN-CVE-2023-2861
Advisory lineage Upstream: 0 Downstream: 15
Modified
Published: 06 Dec 2023, 06:19
Last modified:02 Aug 2024, 06:33

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (nvd)
EPSS Score
0.38% LOW
0% probability +0.33%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 Dec 2023, 06:19
Published
Vulnerability first disclosed
02 Aug 2024, 06:33
Last Modified
Vulnerability information updated

Description

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS Trends

Current EPSS score: 0.38%• Percentile: 31%

Techniques & Countermeasures

  • CWE-284•Improper Access Control

    The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Affected Systems

  • debian•qemu

    all | < 1:7.2+dfsg-7+deb12u1 | < 1:8.0.3+dfsg-1 | < 1:8.0.3+dfsg-1

  • qemu•qemu

    < 8.1.0

References (6)