Use-after-free in Linux kernel's netfilter: nf_tables component
Summary
| CVE | CVE-2023-4015 |
|---|---|
| State | PUBLISHED |
| Assigner | |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-09-06 14:15:11 UTC |
| Updated | 2026-10-14 22:17:16 UTC |
| Description | A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. On an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used. We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-416 | CWE-416 CWE-416 Use After Free
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Kernel | affected 6.4 6.5 custom | Not specified |
| ADP | Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem | affected V1.1 custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| kernel/git/torvalds/linux.git - Linux kernel source tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Issue Tracking, Mailing List, Patch, Vendor Advisory |
| Debian -- Security Information -- DSA-5492-1 linux | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | Third Party Advisory |
| cert-portal.siemens.com/productcert/html/ssa-831302.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| cert-portal.siemens.com/productcert/html/ssa-794697.html | 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e | cert-portal.siemens.com | |
| kernel.dance/0a771f7b266b02d262900c75f1e175c7fe76fec2 | af854a3a-2127-422b-91ae-364da2661108 | kernel.dance | Patch, Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Kevin Rich (en)
Legacy QID Mappings
- 161318 Oracle Enterprise Linux Security Update for kernel (ELSA-2024-12094)
- 161404 Oracle Enterprise Linux Security Update for kernel (ELSA-2024-0461)
- 199764 Ubuntu Security Notification for Linux kernel (OEM) Vulnerabilities (USN-6385-1)
- 242839 Red Hat Update for kernel (RHSA-2024:0461)
- 242845 Red Hat Update for kernel (RHSA-2024:0448)
- 242846 Red Hat Update for kernel-rt (RHSA-2024:0439)
- 379043 Alibaba Cloud Linux Security Update for cloud-kernel (ALINUX3-SA-2023:0136)
- 6000220 Debian Security Update for linux (DSA 5492-1)
- 6140195 AWS Bottlerocket Security Update for kernel (GHSA-qqv4-v68x-7c6j)
- 673595 EulerOS Security Update for kernel (EulerOS-SA-2023-3247)
- 673692 EulerOS Security Update for kernel (EulerOS-SA-2023-3275)
- 907278 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (28675-1)