CVE-2021-3564
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I. Basic Information for CVE-2021-3564
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
双重释放
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 3.13版本及之前版本存在资源管理错误漏洞，该漏洞源于 HCI TTY Bluetooth 驱动中发现了 Linux kernel HCI 设备初始化子系统中的双重释放问题。本地攻击者可以利用此漏洞使系统崩溃。
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 | All Linux kernel versions starting from 3.13 | - |
II. Public POCs for CVE-2021-3564
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.openwall.com/lists/oss-security/2021/05/25/1x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1964139x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-3564
Same Patch Batch · n/a · 2021-06-08 · 30 CVEs total
| CVE-2021-26472 | 10.0 CRITICAL | Unauthenticated remote command execution with SYSTEM privileges in Vembu products |
| CVE-2021-26473 | 9.8 CRITICAL | Unauthenticated arbitrary file upload and command execution in Vembu products |
| CVE-2021-26471 | 9.8 CRITICAL | Unauthenticated remote command execution in Vembu products |
| CVE-2021-26474 | 8.6 HIGH | UNAUTHENTICATED SERVER SIDE REQUEST FORGERY IN VEMBU PRODUCTS |
| CVE-2021-23392 | 5.3 MEDIUM | Regular Expression Denial of Service (ReDoS) |
| CVE-2021-26260 | Industrial Light and Magic OpenEXR 资源管理错误漏洞 | |
| CVE-2021-32106 | ICEcoder 跨站脚本漏洞 | |
| CVE-2020-26516 | Intland codeBeamer ALM 跨站请求伪造漏洞 | |
| CVE-2021-26945 | Industrial Light and Magic OpenEXR 输入验证错误漏洞 | |
| CVE-2021-22116 | RabbitMQ输入验证错误漏洞 | |
| CVE-2021-31738 | Adiscon LogAnalyzer 跨站脚本漏洞 | |
| CVE-2021-23169 | Industrial Light And Magic（lim） OpenEXR 缓冲区错误漏洞 | |
| CVE-2021-23215 | Industrial Light and Magic OpenEXR 资源管理错误漏洞 | |
| CVE-2021-30357 | Arch Linux安全漏洞 | |
| CVE-2021-31807 | Squid 输入验证错误漏洞 | |
| CVE-2021-33560 | Libgcrypt 安全漏洞 | |
| CVE-2021-33571 | Django 代码问题漏洞 | |
| CVE-2020-26517 | Intland Software codeBeamer ALM 跨站脚本漏洞 | |
| CVE-2020-26515 | Intland codeBeamer ALM 安全漏洞 | |
| CVE-2021-31342 | Solid Edge SE 缓冲区错误漏洞 |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: kernel
- CVE-2025-26604
Possibility to retrieve bot token by malicious module develo - CVE-2021-35000
OpenBSD Kernel Multicast Routing Uninitialized Memory Inform - CVE-2021-34999
OpenBSD Kernel Multicast Routing Uninitialized Memory Inform - CVE-2021-34981
Linux Kernel Bluetooth CMTP Module Double Free Privilege Esc - CVE-2024-24898
Information Leakage in kernel
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-415
- CVE-2026-23918
Apache HTTP Server: http2: double free and possible RCE on e - CVE-2026-5657
Double Free in Wireshark - CVE-2026-33824
Windows Internet Key Exchange (IKE) Service Extensions Remot - CVE-2026-32074
Windows Projected File System Elevation of Privilege Vulnera - CVE-2026-32069
Windows Projected File System Elevation of Privilege Vulnera
V. Comments for CVE-2021-3564
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