5.5
MEDIUM
CVE-2023-42467
QEMU Divide By Zero in SCSI Disk Handling
Description

QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in hw/scsi/scsi-disk.c because scsi_disk_emulate_mode_select does not prevent s->qdev.blocksize from being 256. This stops QEMU and the guest immediately.

INFO

Published Date :

Sept. 11, 2023, 4:15 a.m.

Last Modified :

Nov. 4, 2023, 6:15 a.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2023-42467 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
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-42467.

URL Resource
https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9c
https://gitlab.com/qemu-project/qemu/-/issues/1813 Exploit Issue Tracking Third Party Advisory
https://security.netapp.com/advisory/ntap-20231103-0005/

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-2023-42467 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-42467 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 [email protected]

    May. 14, 2024

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

    Nov. 04, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20231103-0005/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 17, 2023

    Action Type Old Value New Value
    Removed Reference https://gitlab.com/thuth/qemu/-/commit/3f91104484e5bf55b56d7e1b039a4a5a17d0c1a7 [Patch]
    Added Reference https://gitlab.com/qemu-project/qemu/-/commit/7cfcc79b0ab800959716738aff9419f53fc68c9c [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 13, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://gitlab.com/qemu-project/qemu/-/issues/1813 No Types Assigned https://gitlab.com/qemu-project/qemu/-/issues/1813 Exploit, Issue Tracking, Third Party Advisory
    Changed Reference Type https://gitlab.com/thuth/qemu/-/commit/3f91104484e5bf55b56d7e1b039a4a5a17d0c1a7 No Types Assigned https://gitlab.com/thuth/qemu/-/commit/3f91104484e5bf55b56d7e1b039a4a5a17d0c1a7 Patch
    Added CWE NIST CWE-369
    Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (including) 8.0.0
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-2023-42467 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-42467 weaknesses.

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

0.05715

percentile

CVSS31 - Vulnerability Scoring System
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