CVE-2022-3619— Linux Kernel Bluetooth l2cap_core.c l2cap_recv_acldata memory leak
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，该漏洞源于蓝牙组件中net/bluetooth/l2cap_core.c文件的l2cap_recv_acldata函数存在问题，可能导致内存泄漏。
Possible ATT&CK Techniques 1 AI
T1211 · Exploitation for Stealth
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I. Basic Information for CVE-2022-3619
Vulnerability Information
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Vulnerability Title
Linux Kernel Bluetooth l2cap_core.c l2cap_recv_acldata memory leak
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function l2cap_recv_acldata of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to memory leak. It is recommended to apply a patch to fix this issue. VDB-211918 is the identifier assigned to this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
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，该漏洞源于蓝牙组件中net/bluetooth/l2cap_core.c文件的l2cap_recv_acldata函数存在问题，可能导致内存泄漏。
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
II. Public POCs for CVE-2022-3619
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Patches & Fixes for CVE-2022-3619 (1)
Vendor Advisories for CVE-2022-3619 (1)
Same Patch Batch · Linux · 2022-10-20 · 3 CVEs total
| CVE-2022-3623 | 5.0 MEDIUM | Linux Kernel BPF gup.c follow_page_pte race condition |
| CVE-2022-3621 | 4.3 MEDIUM | Linux Kernel nilfs2 inode.c nilfs_bmap_lookup_at_level null pointer dereference |
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