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CVE-2023-3090— Out-of-bounds write in Linux kernel's ipvlan network driver

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，该漏洞源于缺少skb->cb 初始化，导致存在基于堆的越界写入漏洞。

CVSS 7.8 · High EPSS 0.49% · P40

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2023-3090

Vulnerability Information
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Vulnerability Title
Out-of-bounds write in Linux kernel's ipvlan network driver
Source: CVE Program / CVE List V5
Vulnerability Description
A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e.
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
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 缓冲区错误漏洞
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，该漏洞源于缺少skb->cb 初始化，导致存在基于堆的越界写入漏洞。
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 Kernel 3.19 ~ 6.4 -

II. Public POCs for CVE-2023-3090

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III. Intelligence Information for CVE-2023-3090

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Patches & Fixes for CVE-2023-3090 (1)

Vendor Advisories for CVE-2023-3090 (3)

Exploits & Public PoCs for CVE-2023-3090 (2)

Mailing List Discussions for CVE-2023-3090 (2)

Other References for CVE-2023-3090 (1)

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

CVE-2023-3390 7.8 HIGH Use-after-free in Linux kernel's netfilter subsystem
CVE-2023-3389 7.8 HIGH Use after free in io_uring in the Linux Kernel
CVE-2023-1295 7.8 HIGH Privilege escalation with IO_RING_OP_CLOSE in the Linux Kernel

IV. Related Vulnerabilities

Same product: Kernel
Same vendor: Linux
Same weakness: CWE-787

V. Comments for CVE-2023-3090

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