6.7
MEDIUM
CVE-2023-6238
"Linux NVM Express DMA Buffer Overflow Vulnerability"
Description

A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.

INFO

Published Date :

Nov. 21, 2023, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 8:43 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2023-6238 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 Linux linux_kernel
1 Fedoraproject fedora
: Total Affected Vendor : 2 | Products : 2
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-2023-6238.

URL Resource
https://access.redhat.com/security/cve/CVE-2023-6238 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2250834 Issue Tracking Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6238 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2250834 Issue Tracking Third Party Advisory

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-2023-6238 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-6238 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-2023-6238
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2250834
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Feb. 07, 2024

    Action Type Old Value New Value
    Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Modified Analysis by [email protected]

    Feb. 06, 2024

    Action Type Old Value New Value
    Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    Feb. 06, 2024

    Action Type Old Value New Value
    Changed Description A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. An unprivileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption. A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.
  • CVE Modified by [email protected]

    Feb. 06, 2024

    Action Type Old Value New Value
    Removed CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by [email protected]

    Dec. 13, 2023

    Action Type Old Value New Value
    Added CWE Red Hat, Inc. CWE-120
    Removed CWE Red Hat, Inc. CWE-119
  • Initial Analysis by [email protected]

    Nov. 29, 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:H
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-6238 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-6238 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2250834 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2250834 Issue Tracking, Third Party Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Nov. 21, 2023

    Action Type Old Value New Value
    Added Description A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. An unprivileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.
    Added Reference Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-6238 [No types assigned]
    Added Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2250834 [No types assigned]
    Added CWE Red Hat, Inc. CWE-119
    Added CVSS V3.1 Red Hat, Inc. AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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-2023-6238 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-2023-6238 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers
Exploit Prediction

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

0.04 }} -0.02%

score

0.07293

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: