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CVE-2023-3390— Use-after-free in Linux kernel's netfilter subsystem

Quick assessment

Affected
Linux Linux Kernel
Exploitation
Public or AI PoC available; prioritize validation
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，该漏洞源于在netfilter子系统中存在内存释放后重用问题。

CVSS 7.8 · High EPSS 0.91% · P59

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 7

VendorProduct Version RangeStatus
Linux Linux Kernel 3.16< 4.14.322 affected
4.15< 4.19.291 affected
4.20< 5.4.251 affected
5.5< 5.10.188 affected
5.11< 5.15.118 affected
5.16< 6.1.35 affected
6.2< 6.3.9 affected
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I. Basic Information for CVE-2023-3390

Vulnerability Information
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Vulnerability Title
Use-after-free in Linux kernel's netfilter subsystem
Source: CVE Program / CVE List V5
Vulnerability Description
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
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，该漏洞源于在netfilter子系统中存在内存释放后重用问题。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux Kernel 3.16 ~ 4.14.322 -

II. Public POCs for CVE-2023-3390

# POC Description Source Link Shenlong Link
1 PoC of the CVE-2023-3390 https://github.com/flygonty/CVE-2023-3390_PoC POC Details
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III. Intelligence Information for CVE-2023-3390

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Patches & Fixes for CVE-2023-3390 (1)

Vendor Advisories for CVE-2023-3390 (3)

Exploits & Public PoCs for CVE-2023-3390 (2)

Mailing List Discussions for CVE-2023-3390 (4)

Other References for CVE-2023-3390 (1)

Same Patch Batch · Linux · 2023-06-28 · 4 CVEs total

CVE-2023-3389 7.8 HIGH Use after free in io_uring in the Linux Kernel
CVE-2023-3090 7.8 HIGH Out-of-bounds write in Linux kernel's ipvlan network driver
CVE-2023-1295 7.8 HIGH Privilege escalation with IO_RING_OP_CLOSE in the Linux Kernel

IV. Related Vulnerabilities

Same product: Linux Kernel
Same vendor: Linux
Same weakness: CWE-416

V. Comments for CVE-2023-3390

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