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CVE-2021-20322

EPSS 0.14% · P33
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I. Basic Information for CVE-2021-20322

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用不充分的随机数
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全特征问题漏洞
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，攻击者可利用该漏洞可以绕过对Linux内核数据的访问限制，通过ICMP错误开放UDP端口，以读取敏感信息。
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

VendorProductAffected VersionsCPESubscribe
-kernel kernel 5.15-rc1 -

II. Public POCs for CVE-2021-20322

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III. Intelligence Information for CVE-2021-20322

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Same Patch Batch · n/a · 2022-02-18 · 67 CVEs total

CVE-2022-252999.8 CRITICALArbitrary File Write
CVE-2021-237027.6 HIGHPrototype Pollution
CVE-2022-252987.5 HIGHPath Traversal
CVE-2021-46062MingSoft MCMS 安全漏洞
CVE-2022-25134TotoLink routers 命令注入漏洞
CVE-2022-25135TotoLink routers 命令注入漏洞
CVE-2022-25133TotoLink routers 命令注入漏洞
CVE-2021-46110Online Shopping Portal 安全漏洞
CVE-2021-46082Moxa Tn-5900 安全漏洞
CVE-2021-46063MingSoft MCMS 代码代码注入漏洞
CVE-2021-40841LiveConfig 路径遍历漏洞
CVE-2021-46037MingSoft MCMS 安全漏洞
CVE-2021-46036MingSoft MCMS 代码问题漏洞
CVE-2021-30650Broadcom Symantec Layer7 API Management OAuth Toolkit跨站脚本漏洞
CVE-2020-8242Packet Tide ExpressionEngine 安全漏洞
CVE-2021-3657Sourceforge mbsync 缓冲区错误漏洞
CVE-2021-3947QEMU 缓冲区错误漏洞
CVE-2021-3930QEMU 安全漏洞
CVE-2021-20325Red Hat Enterprise Linux 代码问题漏洞
CVE-2021-20321Linux kernel 竞争条件问题漏洞

Showing top 20 of 67 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: kernel
Same vendor: n/a
Same weakness: CWE-330

V. Comments for CVE-2021-20322

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