CVE-2022-3640— Linux Kernel Bluetooth l2cap_core.c l2cap_conn_del use after free
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I. Basic Information for CVE-2022-3640
Vulnerability Information
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Vulnerability Title
Linux Kernel Bluetooth l2cap_core.c l2cap_conn_del use after free
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability, which was classified as critical, was found in Linux Kernel. Affected is the function l2cap_conn_del of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211944.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
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
II. Public POCs for CVE-2022-3640
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Same Patch Batch · Linux · 2022-10-21 · 11 CVEs total
| CVE-2022-3635 | 5.5 MEDIUM | Linux Kernel IPsec idt77252.c tst_timer use after free |
| CVE-2022-3636 | 5.5 MEDIUM | Linux Kernel Ethernet mtk_ppe.c __mtk_ppe_check_skb use after free |
| CVE-2022-3625 | 4.6 MEDIUM | Linux Kernel IPsec devlink.c devlink_param_get use after free |
| CVE-2022-3624 | 3.5 LOW | Linux Kernel IPsec bond_alb.c rlb_arp_xmit memory leak |
| CVE-2022-3633 | 3.5 LOW | Linux Kernel transport.c j1939_session_destroy memory leak |
| CVE-2022-3630 | 3.1 LOW | Linux Kernel IPsec cookie.c memory leak |
| CVE-2022-3646 | 3.1 LOW | Linux Kernel BPF segment.c nilfs_attach_log_writer memory leak |
| CVE-2022-3649 | 3.1 LOW | Linux Kernel BPF inode.c nilfs_new_inode use after free |
| CVE-2022-3629 | 2.6 LOW | Linux Kernel af_vsock.c vsock_connect memory leak |
| CVE-2022-3637 | 2.6 LOW | Linux Kernel BlueZ jlink.c jlink_init denial of service |
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V. Comments for CVE-2022-3640
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