CVE-2023-42756

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.

CVSS v3.1

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

CVSS v3.1

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

EPSS

0.27% chance of exploitation in the next 30 days, 20th percentile

Published

2023-09-28

Updated

2025-11-06

Proof-of-concept exploits (1)

• https://seclists.org/oss-sec/2023/q3/242

References

• CVE Record
• NVD entry

Related

• CVE-2023-42755
• CVE-2023-4278
• CVE-2023-42754
• CVE-2023-42787
• CVE-2023-42753
• CVE-2023-42788