What is CVE-2023-42756?

CVE-2023-42756 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Race Condition flaw (CWE-362). CVE-2023-42756 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-42756?

CVE-2023-42756 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-42756?

No patch is currently available for CVE-2023-42756. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-42756 actively exploited?

CVE-2023-42756 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2023-42756

Medium

A flaw was found in the Netfilter subsystem of the Linux kernel. A race condition between IPSET_CMD_ADD and IPSET_CMD_SWAP can lead to a kernel panic due to the invocation of `__ip_set_put` on a wrong `set`. This issue may allow a local user to crash the system.

Package Linux Kernel

Published 2023-09-28

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-362

CVE-2023-42756 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-42756 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/errata/RHSA-2024:2394
Debian Security
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/GISYSL3F6WIEVGHJGLC2MFNTUXHPTKQH/
Lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/GPMICQ2HVZO5UAM5KPXHAZKA2U3ZDOO6/
Lists
https://lists.fedoraproject.org/archives/list/[email protected]/message/V5PDNWPKAP3WL5RQZ4RIDS6MG32OHH5R/
Kernel patch commit
https://access.redhat.com/security/cve/CVE-2023-42756
Patch
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2239848
Patch
Kernel patch commit
https://seclists.org/oss-sec/2023/q3/242
Patch

Details

CVE ID CVE-2023-42756

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2023-09-28

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-42756?

CVE-2023-42756 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2023-42756 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-42756?

CVE-2023-42756 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-42756?

No patch is currently available for CVE-2023-42756. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-42756 actively exploited?

No — CVE-2023-42756 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. View CWE-362 on MITRE CWE →