4.3
MEDIUM
CVE-2023-6121
Apache/Linux kernel NVMe-oF/TCP Out-of-Bounds Read Buffer Overflow
Description

An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data being printed and potentially leaked to the kernel ring buffer (dmesg).

INFO

Published Date :

Nov. 16, 2023, 3:15 p.m.

Last Modified :

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

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2023-6121 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 Redhat enterprise_linux

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-2023-6121 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-6121 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/errata/RHSA-2024:2394
    Added Reference https://access.redhat.com/errata/RHSA-2024:2950
    Added Reference https://access.redhat.com/errata/RHSA-2024:3138
    Added Reference https://access.redhat.com/security/cve/CVE-2023-6121
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2250043
    Added Reference https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
  • CVE Modified by [email protected]

    Sep. 14, 2024

    Action Type Old Value New Value
    Removed Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
  • CVE Modified by [email protected]

    May. 29, 2024

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

    May. 22, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2950 [No types assigned]
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:3138 [No types assigned]
  • CVE Modified by [email protected]

    May. 22, 2024

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

    May. 14, 2024

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

    Apr. 30, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://access.redhat.com/errata/RHSA-2024:2394 [No types assigned]
  • CVE Modified by [email protected]

    Jan. 11, 2024

    Action Type Old Value New Value
    Added Reference Red Hat, Inc. https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html [No types assigned]
  • CVE Modified by [email protected]

    Dec. 20, 2023

    Action Type Old Value New Value
    Changed Description An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg). An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data being printed and potentially leaked to the kernel ring buffer (dmesg).
  • Initial Analysis by [email protected]

    Nov. 28, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
    Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-6121 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-6121 Third Party Advisory
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2250043 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2250043 Issue Tracking, Third Party Advisory
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Nov. 16, 2023

    Action Type Old Value New Value
    Added Description An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This flaw allows a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data to be printed (and potentially leaked) to the kernel ring buffer (dmesg).
    Added Reference Red Hat, Inc. https://access.redhat.com/security/cve/CVE-2023-6121 [No types assigned]
    Added Reference Red Hat, Inc. https://bugzilla.redhat.com/show_bug.cgi?id=2250043 [No types assigned]
    Added CWE Red Hat, Inc. CWE-125
    Added CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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-2023-6121 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-2023-6121 weaknesses.

Exploit Prediction

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

0.27 }} -0.04%

score

0.67294

percentile

CVSS31 - Vulnerability Scoring System
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