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CVE-2022-3523— Linux Kernel Driver memory.c use after free

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 存在资源管理错误漏洞，该漏洞源于内存释放后重用。

CVSS 5.3 · Medium EPSS 0.92% · P59

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2022-3523

Vulnerability Information
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Vulnerability Title
Linux Kernel Driver memory.c use after free
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is an unknown function of the file mm/memory.c of the component Driver Handler. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211020.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
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 存在资源管理错误漏洞，该漏洞源于内存释放后重用。
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 n/a -

II. Public POCs for CVE-2022-3523

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III. Intelligence Information for CVE-2022-3523

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Vendor Advisories for CVE-2022-3523 (1)

Same Patch Batch · Linux · 2022-10-16 · 4 CVEs total

CVE-2022-3526 5.3 MEDIUM Linux Kernel skb macvlan.c macvlan_handle_frame memory leak
CVE-2022-3524 4.3 MEDIUM Linux Kernel IPv6 ipv6_renew_options memory leak
CVE-2022-3521 2.6 LOW Linux Kernel kcm kcmsock.c kcm_tx_work race condition

IV. Related Vulnerabilities

Same product: Kernel
Same vendor: Linux
Same weakness: CWE-119

V. Comments for CVE-2022-3523

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