CVE-2023-3390
Use-after-free in Linux kernel's netfilter subsystem
HIGH 7.8EPSS 0.9%
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.
- Affected
- Linux · Linux Kernel
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.91% chance of exploitation in the next 30 days, 59th percentile
- Published
- 2023-06-28
- Updated
- 2026-07-22
Proof-of-concept exploits (2)
- flygonty/CVE-2023-3390_PoC2★ · 2024-09-30
- MPI-SysSec/DirtyFree31★ · 2026-03-04
Exploit collections (1)
- linux/kernelctf/CVE-2023-3390_lts_cos_mitigationgoogle/security-research
Security advisories
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1…
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://security.netapp.com/advisory/ntap-20230818-0004
- https://www.debian.org/security/2023/dsa-5448
- https://www.debian.org/security/2023/dsa-5461
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1240eb93f0616…
- https://kernel.dance/1240eb93f0616b21c675416516ff3d74798fdc97