VULNERABILITY INTELLIGENCE
CVE-2023-31248
CVSS score7.8 HIGH
EPSS probability1.89%
CISA KEVNot currently listed
Published2023-07-05
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()` failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace
Weakness classification
- security@ubuntu.com: CWE-416
- nvd@nist.gov: CWE-416
Primary references
- security@ubuntu.com — Third Party Advisory, VDB Entry
- security@ubuntu.com — Third Party Advisory, VDB Entry
- security@ubuntu.com — Mailing List, Third Party Advisory
- security@ubuntu.com — Third Party Advisory, VDB Entry
- security@ubuntu.com — Mailing List
- security@ubuntu.com — Mailing List
- security@ubuntu.com — Patch
- security@ubuntu.com
- security@ubuntu.com — Third Party Advisory
- security@ubuntu.com — Mailing List
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry