What is CVE-2023-39191?

CVE-2023-39191 is a High severity Linux kernel vulnerability with a CVSS score of 8.2 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2023-39191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-39191?

CVE-2023-39191 has a CVSS score of 8.2 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Is there a patch available for CVE-2023-39191?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-39191 patch availability.

Is CVE-2023-39191 actively exploited?

CVE-2023-39191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-39191

High

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

Package Linux Kernel

Published 2023-10-04

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

8.2

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Weakness type

CWE-20

CVE-2023-39191 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

7 total

Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2226783

Issue Tracking Patch Third Party Advisory
Zerodayinitiative
https://www.zerodayinitiative.com/advisories/ZDI-CAN-19399/

Patch Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2023:6583

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2024:0381

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2024:0439

Third Party Advisory

Showing 5 of 7 references View all on NVD

Details

CVE ID CVE-2023-39191

Severity High

CVSS score 8.2 / 10

CVSS version 3.1

Published 2023-10-04

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-39191?

CVE-2023-39191 is a High severity Linux kernel vulnerability with a CVSS score of 8.2 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2023-39191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-39191?

CVE-2023-39191 has a CVSS score of 8.2 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Is there a patch available for CVE-2023-39191?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-39191 patch availability.
Is CVE-2023-39191 actively exploited?

No. CVE-2023-39191 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.