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I. Basic Information for CVE-2021-38209
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
net/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NF_SYSCTL_CT_MAX, NF_SYSCTL_CT_EXPECT_MAX, and NF_SYSCTL_CT_BUCKETS sysctls.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
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。 Linux kernel 存在安全漏洞,该漏洞源于5.12.2之前版本的Linux内核中的net/netfilter/nf_conntrack_standalone.c 允许观察任何网络命名空间中的更改,因为这些更改会泄漏到所有其他网络命名空间中,这与 NF_SYSCTL_CT_MAX、NF_SYSCTL_CT_EXPECT_MAX 和 NF_SYSCTL_CT_BUCKETS sysctls 相关。
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
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II. Public POCs for CVE-2021-38209
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III. Intelligence Information for CVE-2021-38209
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IV. Related Vulnerabilities
V. Comments for CVE-2021-38209

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