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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.009 (59.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 59.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
- Linux Kernel — versions 4.15, 6.2, 5.5
- Linux Kernel
- NetApp H300s
- NetApp H410c
- NetApp H410s
- NetApp H500s
- NetApp H700s
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/ (Patch, Mailing List)
- kernel.dance/1240eb93f0616b21c675416516ff3d74798fdc97 (Patch)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/08/msg00001.html (Third Party Advisory)
- security.netapp.com/advisory/ntap-20230818-0004/ (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Third Party Advisory, VDB Entry)
- lists.debian.org/debian-lts-announce/2024/01/msg00004.html (VDB Entry, Third Party Advisory)
- lists.debian.org/debian-security-announce/2023/msg00140.html
- lists.debian.org/debian-security-announce/2023/msg00153.html
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.