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CVE-2024-21803— Possible UAF in bt_accept_poll in Linux kernel

Quick assessment

Affected
Linux 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，该漏洞源于蓝牙模块存在释放后重用漏洞，允许本地执行代码。

CVSS 3.5 · Low EPSS 0.50% · P40

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2024-21803

Vulnerability Information
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Vulnerability Title
Possible UAF in bt_accept_poll in Linux kernel
Source: CVE Program / CVE List V5
Vulnerability Description
Use After Free vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (bluetooth modules) allows Local Execution of Code. This vulnerability is associated with program files https://gitee.Com/anolis/cloud-kernel/blob/devel-5.10/net/bluetooth/af_bluetooth.C. This issue affects Linux kernel: from v2.6.12-rc2 before v6.8-rc1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
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，该漏洞源于蓝牙模块存在释放后重用漏洞，允许本地执行代码。
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 v2.6.12-rc2 ~ v6.8-rc1 -

II. Public POCs for CVE-2024-21803

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III. Intelligence Information for CVE-2024-21803

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IV. Related Vulnerabilities

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

V. Comments for CVE-2024-21803

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