CVE-2023-42756

Kernel: netfilter: race condition between ipset_cmd_add and ipset_cmd_swap

Published Sep 28, 2023 CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DLA Debian DLA DLA-3623-1 linux-5.10 security update
EUVD EUVD EUVD-2023-47188 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.
Ubuntu USN Ubuntu USN USN-6441-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6441-2 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-6441-3 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6442-1 Linux kernel (BlueField) vulnerabilities
Ubuntu USN Ubuntu USN USN-6443-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-6444-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6444-2 Linux kernel (StarFive) vulnerabilities
Ubuntu USN Ubuntu USN USN-6445-1 Linux kernel (Intel IoTG) vulnerabilities
Ubuntu USN Ubuntu USN USN-6445-2 Linux kernel (Intel IoTG) vulnerabilities
Ubuntu USN Ubuntu USN USN-6446-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6446-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6446-3 Linux kernel (Oracle) vulnerabilities
Ubuntu USN Ubuntu USN USN-6454-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6454-2 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-6454-3 Linux kernel (ARM laptop) vulnerabilities
Ubuntu USN Ubuntu USN USN-6454-4 Linux kernel (StarFive) vulnerabilities
Ubuntu USN Ubuntu USN USN-6466-1 Linux kernel (NVIDIA) vulnerabilities
Ubuntu USN Ubuntu USN USN-6479-1 Linux kernel (OEM) vulnerabilities
History
Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:8
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 7, 2026, 11:32 AM
Reserved
Sep 13, 2023, 11:03 AM
Status
Modified
Published
Sep 28, 2023, 2:15 PM
Modified
Nov 7, 2026, 12:17 PM
Severity
Moderate
Public date
Sep 27, 2023, 12:00 AM