7.1
HIGH
CVE-2023-2861
QEMU 9p Passthrough Filesystem Inclusion of Host Special Files Vulnerability
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.

INFO

Published Date :

Dec. 6, 2023, 7:15 a.m.

Last Modified :

Nov. 21, 2024, 7:59 a.m.

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2023-2861 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Qemu qemu

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-2861 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-2861 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/security/cve/CVE-2023-2861
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2219266
    Added Reference https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html
    Added Reference https://security.netapp.com/advisory/ntap-20240125-0005/
    Added Reference https://security.netapp.com/advisory/ntap-20240229-0002/
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Mar. 11, 2024

    Action Type Old Value New Value
    Added Reference Fedora Project https://security.netapp.com/advisory/ntap-20240229-0002/ [No types assigned]
    Added Reference Fedora Project https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html [No types assigned]
  • CVE Modified by [email protected]

    Jan. 25, 2024

    Action Type Old Value New Value
    Added Reference Fedora Project https://security.netapp.com/advisory/ntap-20240125-0005/ [No types assigned]
  • Initial Analysis by [email protected]

    Dec. 11, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-2861 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-2861 Vendor Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2219266 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2219266 Issue Tracking, Patch
    Added CWE NIST NVD-CWE-Other
    Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 8.1.0
  • CVE Received by [email protected]

    Dec. 06, 2023

    Action Type Old Value New Value
    Added 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.
    Added Reference Fedora Project https://access.redhat.com/security/cve/CVE-2023-2861 [No types assigned]
    Added Reference Fedora Project https://bugzilla.redhat.com/show_bug.cgi?id=2219266 [No types assigned]
    Added CWE Fedora Project CWE-284
    Added CVSS V3.1 Fedora Project AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-2861 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.12131

percentile

CVSS31 - Vulnerability Scoring System
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