cnvd-2020-51035
Vulnerability from cnvd
Title: Linux kernel代码注入漏洞（CNVD-2020-51035）
Description:
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。
Linux kernel 中af_packet.c存在代码注入漏洞。该漏洞源于外部输入数据构造代码段的过程中，网络系统或产品未能正确过滤其中的特殊元素。攻击者可利用该漏洞触发拒绝服务并执行代码。
Severity: 高
Patch Name: Linux kernel代码注入漏洞（CNVD-2020-51035）的补丁
Patch Description:
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。
Linux kernel 中af_packet.c存在代码注入漏洞。该漏洞源于外部输入数据构造代码段的过程中，网络系统或产品未能正确过滤其中的特殊元素。攻击者可利用该漏洞触发拒绝服务并执行代码。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description:
厂商已发布了漏洞修复程序，请及时关注更新： https://security-tracker.debian.org/tracker/CVE-2020-14386
Reference: https://vigilance.fr/vulnerability/Linux-kernel-memory-corruption-via-af-packet-c-33255
Impacted products
| Name | Linux Linux kernel |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-14386",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-14386"
}
},
"description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel \u4e2daf_packet.c\u5b58\u5728\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5916\u90e8\u8f93\u5165\u6570\u636e\u6784\u9020\u4ee3\u7801\u6bb5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u80fd\u6b63\u786e\u8fc7\u6ee4\u5176\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u89e6\u53d1\u62d2\u7edd\u670d\u52a1\u5e76\u6267\u884c\u4ee3\u7801\u3002",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://security-tracker.debian.org/tracker/CVE-2020-14386",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2020-51035",
"openTime": "2020-09-09",
"patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel \u4e2daf_packet.c\u5b58\u5728\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5916\u90e8\u8f93\u5165\u6570\u636e\u6784\u9020\u4ee3\u7801\u6bb5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u7f51\u7edc\u7cfb\u7edf\u6216\u4ea7\u54c1\u672a\u80fd\u6b63\u786e\u8fc7\u6ee4\u5176\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u89e6\u53d1\u62d2\u7edd\u670d\u52a1\u5e76\u6267\u884c\u4ee3\u7801\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
"patchName": "Linux kernel\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\uff08CNVD-2020-51035\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Linux kernel"
},
"referenceLink": "https://vigilance.fr/vulnerability/Linux-kernel-memory-corruption-via-af-packet-c-33255",
"serverity": "\u9ad8",
"submitTime": "2020-09-07",
"title": "Linux kernel\u4ee3\u7801\u6ce8\u5165\u6f0f\u6d1e\uff08CNVD-2020-51035\uff09"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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