CVE-2023-5197— Use-after-free in Linux kernel's netfilter: nf_tables component
Quick assessment
Affected
Linux Kernel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于netfilter: nf_tables 组件中存在释放后重用漏洞，可被利用来实现本地权限提升。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2023-5197
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Use-after-free in Linux kernel's netfilter: nf_tables component
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-free.
We recommend upgrading past commit f15f29fd4779be8a418b66e9d52979bb6d6c2325.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于netfilter: nf_tables 组件中存在释放后重用漏洞，可被利用来实现本地权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2023-5197
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2023-5197
请登录查看更多情报信息。
Patches & Fixes for CVE-2023-5197 (1)
Exploits & Public PoCs for CVE-2023-5197 (1)
Mailing List Discussions for CVE-2023-5197 (1)
Other References for CVE-2023-5197 (1)
IV. Related Vulnerabilities
Same product: Kernel
-
CVE-2025-26604
Possibility to retrieve bot token by malicious module develo -
CVE-2021-35000
OpenBSD Kernel Multicast Routing Uninitialized Memory Inform -
CVE-2021-34999
OpenBSD Kernel Multicast Routing Uninitialized Memory Inform -
CVE-2021-34981
Linux Kernel Bluetooth CMTP Module Double Free Privilege Esc -
CVE-2024-24898
Information Leakage in kernel
Same vendor: Linux
-
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
CVE-2026-98382
bpf: Reject dev-bound-only programs on other devices -
CVE-2026-98381
veth: manage XDP program pointers during channel resize -
CVE-2026-98380
net/sched: reject IDR error pointers when deleting actions
Same weakness: CWE-416
-
CVE-2026-95702
Code Execution in Host Sentry Process via Double Free in gVi -
CVE-2026-14508
IBM DataPower Gateway Use After Free -
CVE-2026-107167
M17n-lib: heap use-after-free write in re_init_ic() -
CVE-2026-107183
llama.cpp before b11393 Use-After-Free via common_chat_peg_m -
CVE-2026-106234
Chrome 155.0.8059.39前扩展Use After Free漏洞
V. Comments for CVE-2023-5197
No comments yet