What is CVE-2023-3863?

CVE-2023-3863 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.1 out of 10, classified as a Use After Free flaw (CWE-416). CVE-2023-3863 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-3863?

CVE-2023-3863 has a CVSS score of 4.1 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N.

Is there a patch available for CVE-2023-3863?

No patch is currently available for CVE-2023-3863. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-3863 actively exploited?

CVE-2023-3863 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2023-3863

Medium

A use-after-free flaw was found in nfc_llcp_find_local in net/nfc/llcp_core.c in NFC in the Linux kernel. This flaw allows a local user with special privileges to impact a kernel information leak issue.

Package Linux Kernel

Published 2023-07-24

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.1

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Vector string

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

Weakness type

CWE-416

CVE-2023-3863 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-3863 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/security/cve/CVE-2023-3863

Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

Mailing List Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20240202-0002/
Debian Security
https://www.debian.org/security/2023/dsa-5480

Third Party Advisory
Debian Security
https://www.debian.org/security/2023/dsa-5492

Third Party Advisory
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2225126
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/6709d4b7bc2e079241fdef15d1160581c5261c10
Patch

Details

CVE ID CVE-2023-3863

Severity Medium

CVSS score 4.1 / 10

CVSS version 3.1

Published 2023-07-24

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-3863?

CVE-2023-3863 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.1 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2023-3863 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-3863?

CVE-2023-3863 has a CVSS score of 4.1 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N.
Is there a patch available for CVE-2023-3863?

No patch is currently available for CVE-2023-3863. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-3863 actively exploited?

No — CVE-2023-3863 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →