cnvd-2018-06431
Vulnerability from cnvd
Title: Linux kernel拒绝服务漏洞（CNVD-2018-06431）
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。
4.14.3之前的Linux kernel中的drivers/md/dm.c中的dm_get_from_kobject函数存在拒绝服务漏洞。本地用户可利用创建和删除DM设备期间__dm_destroy的竞争条件利用该漏洞导致拒绝服务。
Severity: 低
Patch Name: Linux kernel拒绝服务漏洞（CNVD-2018-06431）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。
4.14.3之前的Linux kernel中的drivers/md/dm.c中的dm_get_from_kobject函数存在拒绝服务漏洞。本地用户可利用创建和删除DM设备期间__dm_destroy的竞争条件利用该漏洞导致拒绝服务。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:
厂商已发布漏洞修复程序，请及时关注更新： https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b9a41d21dceadf8104812626ef85dc56ee8a60ed
Reference: https://nvd.nist.gov/vuln/detail/CVE-2017-18203
Impacted products
| Name | Linux kernel <4.14.3 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2017-18203"
}
},
"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\r\n\r\n4.14.3\u4e4b\u524d\u7684Linux kernel\u4e2d\u7684drivers/md/dm.c\u4e2d\u7684dm_get_from_kobject\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u672c\u5730\u7528\u6237\u53ef\u5229\u7528\u521b\u5efa\u548c\u5220\u9664DM\u8bbe\u5907\u671f\u95f4__dm_destroy\u7684\u7ade\u4e89\u6761\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
"discovererName": "unknown",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b9a41d21dceadf8104812626ef85dc56ee8a60ed",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2018-06431",
"openTime": "2018-03-27",
"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\n4.14.3\u4e4b\u524d\u7684Linux kernel\u4e2d\u7684drivers/md/dm.c\u4e2d\u7684dm_get_from_kobject\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u672c\u5730\u7528\u6237\u53ef\u5229\u7528\u521b\u5efa\u548c\u5220\u9664DM\u8bbe\u5907\u671f\u95f4__dm_destroy\u7684\u7ade\u4e89\u6761\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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-2018-06431\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux kernel \u003c4.14.3"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-18203",
"serverity": "\u4f4e",
"submitTime": "2018-02-28",
"title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2018-06431\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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