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CVE-2023-6039— Kernel: use-after-free in drivers/net/usb/lan78xx.c in lan78xx_disconnect

Quick assessment

Affected
n/a 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lan78xx_disconnect 中的 drivers/net/usb/lan78xx.c 发现了释放后重用问题。

CVSS 5.5 · Medium EPSS 0.26% · P17

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection
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I. Basic Information for CVE-2023-6039

Vulnerability Information
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Vulnerability Title
Kernel: use-after-free in drivers/net/usb/lan78xx.c in lan78xx_disconnect
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free flaw was found in lan78xx_disconnect in drivers/net/usb/lan78xx.c in the network sub-component, net/usb/lan78xx in the Linux Kernel. This flaw allows a local attacker to crash the system when the LAN78XX USB device detaches.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 安全漏洞
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lan78xx_disconnect 中的 drivers/net/usb/lan78xx.c 发现了释放后重用问题。
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
- Kernel 6.5-rc5 -
Red Hat Red Hat Enterprise Linux 6 - cpe:/o:redhat:enterprise_linux:6
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Fedora Fedora - -

II. Public POCs for CVE-2023-6039

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III. Intelligence Information for CVE-2023-6039

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Patches & Fixes for CVE-2023-6039 (1)

Vendor Advisories for CVE-2023-6039 (2)

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IV. Related Vulnerabilities

Same product: Kernel
Same vendor: n/a
Same weakness: CWE-416