CVE-2021-46283
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I. Basic Information for CVE-2021-46283
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace.
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
netfilter 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
netfilter是一款使用在Linux系统中的数据包过滤框架。 netfilter 版本存在安全漏洞，该漏洞源于nf tables api.c存在空指针指针解引用的漏洞，攻击者利用该漏洞可导致拒绝服务攻击。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2021-46283
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-46283
Same Patch Batch · n/a · 2022-01-11 · 9 CVEs total
| CVE-2021-43974 | Sysaid Technologies SysAid 访问控制错误漏洞 | |
| CVE-2021-43973 | Sysaid Technologies SysAid 代码问题漏洞 | |
| CVE-2021-43972 | Sysaid Technologies SysAid 安全漏洞 | |
| CVE-2021-43971 | Sysaid Technologies SysAid SQL注入漏洞 | |
| CVE-2020-28103 | CScms SQL注入漏洞 | |
| CVE-2020-28102 | CScms SQL注入漏洞 | |
| CVE-2021-43566 | Samba 竞争条件问题漏洞 | |
| CVE-2021-44647 | Lua安全漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a
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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
V. Comments for CVE-2021-46283
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