cnvd-2020-66311
Vulnerability from cnvd
Title: Linux kernel拒绝服务漏洞（CNVD-2020-66311）
Description:
Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。
Linux kernel 5.9.9版本及之前版本存在代码问题漏洞，该漏洞源于speakup spk ttyio.c中发现了一个问题。使用speakup驱动程序的系统上的本地攻击者可能会导致本地拒绝服务攻击。
Severity: 低
Patch Name: Linux kernel拒绝服务漏洞（CNVD-2020-66311）的补丁
Patch Description:
Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。
Linux kernel 5.9.9版本及之前版本存在代码问题漏洞，该漏洞源于speakup spk ttyio.c中发现了一个问题。使用speakup驱动程序的系统上的本地攻击者可能会导致本地拒绝服务攻击。 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://github.com/torvalds/linux/commit/d4122754442799187d5d537a9c039a49a67e57f1
Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-28941
Impacted products
| Name | Linux Linux kernel <=5.9.9 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-28941",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-28941"
}
},
"description": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\n\nLinux kernel 5.9.9\u7248\u672c\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8espeakup spk ttyio.c\u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u95ee\u9898\u3002\u4f7f\u7528speakup\u9a71\u52a8\u7a0b\u5e8f\u7684\u7cfb\u7edf\u4e0a\u7684\u672c\u5730\u653b\u51fb\u8005\u53ef\u80fd\u4f1a\u5bfc\u81f4\u672c\u5730\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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://github.com/torvalds/linux/commit/d4122754442799187d5d537a9c039a49a67e57f1",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2020-66311",
"openTime": "2020-11-25",
"patchDescription": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\r\n\r\nLinux kernel 5.9.9\u7248\u672c\u53ca\u4e4b\u524d\u7248\u672c\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8espeakup spk ttyio.c\u4e2d\u53d1\u73b0\u4e86\u4e00\u4e2a\u95ee\u9898\u3002\u4f7f\u7528speakup\u9a71\u52a8\u7a0b\u5e8f\u7684\u7cfb\u7edf\u4e0a\u7684\u672c\u5730\u653b\u51fb\u8005\u53ef\u80fd\u4f1a\u5bfc\u81f4\u672c\u5730\u62d2\u7edd\u670d\u52a1\u653b\u51fb\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-66311\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Linux kernel \u003c=5.9.9"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-28941",
"serverity": "\u4f4e",
"submitTime": "2020-11-20",
"title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-66311\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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