Use After Free in Linux Kernel
CVE-2023-3390
A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97
Vulnerability class: Use-After-Free
EPSS: 0.009 (57.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Kernel — versions 4.15, 6.2, 5.5
- Linux Linux_kernel
- Netapp H300s
- Netapp H410c
- Netapp H410s
- Netapp H500s
- Netapp H700s
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve-coordination@google.com (Patch, Mailing List)
- cve-coordination@google.com (Patch)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
- cve-coordination@google.com (Third Party Advisory)
- cve-coordination@google.com (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory, VDB Entry)
- cve-coordination@google.com (VDB Entry, Third Party Advisory)
- cve-coordination@google.com
- cve-coordination@google.com
Frequently asked questions
- What is CVE-2023-3390?
- CVE-2023-3390 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-06-28.
- How severe is CVE-2023-3390?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-3390 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.