CVE-2021-20317
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I. Basic Information for CVE-2021-20317
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
初始化不恰当
Source: NVD (National Vulnerability Database)
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。overlayfs是其中的一套文件系统。 Linux kernel存在安全漏洞，该漏洞源于损坏的计时器树导致lib/timerqueue.c中的timerqueue_add函数中缺少任务唤醒。攻击者可利用该漏洞造成拒绝服务。
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 | Kernel 5.3 rc1 | - |
II. Public POCs for CVE-2021-20317
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://bugzilla.redhat.com/show_bug.cgi?id=2005258x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-20317
Same Patch Batch · n/a · 2021-09-27 · 56 CVEs total
| CVE-2021-36134 | 7.4 HIGH | Out of bounds write in Netop Vision Pro |
| CVE-2021-23445 | 3.1 LOW | Cross-site Scripting (XSS) |
| CVE-2021-0425 | Mediatek 芯片 安全漏洞 | |
| CVE-2021-41329 | Datalust Seq 安全漏洞 | |
| CVE-2021-31605 | Openvpn OpenVPN 命令注入漏洞 | |
| CVE-2021-40349 | e7d Speed Test 路径遍历漏洞 | |
| CVE-2021-40981 | Asus Rog Armory Crate 代码问题漏洞 | |
| CVE-2021-0421 | Mediatek 芯片 安全漏洞 | |
| CVE-2021-0422 | Mediatek 芯片 缓冲区错误漏洞 | |
| CVE-2021-0423 | Mediatek 芯片 安全漏洞 | |
| CVE-2021-0424 | Mediatek 芯片 缓冲区错误漏洞 | |
| CVE-2021-40098 | PortlandLabs Concrete CMS 路径遍历漏洞 | |
| CVE-2021-0610 | Mediatek 芯片 输入验证错误漏洞 | |
| CVE-2021-0611 | Mediatek 芯片 资源管理错误漏洞 | |
| CVE-2021-0612 | Mediatek 芯片 资源管理错误漏洞 | |
| CVE-2021-0660 | Mediatek 芯片 缓冲区错误漏洞 | |
| CVE-2021-40104 | PortlandLabs Concrete CMS 安全漏洞 | |
| CVE-2021-40105 | PortlandLabs Concrete Cms 跨站脚本漏洞 | |
| CVE-2021-40106 | PortlandLabs Concrete Cms 跨站脚本漏洞 | |
| CVE-2021-40108 | PortlandLabs Concrete Cms 跨站请求伪造漏洞 |
Showing top 20 of 56 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Linux Kernel Bluetooth CMTP Module Double Free Privilege Esc - CVE-2024-24898
Information Leakage in kernel
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