cnvd-2020-37937
Vulnerability from cnvd
Title: Linux kernel资源管理错误漏洞（CNVD-2020-37937）
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 5.6.5之前版本中的block/bfq-iosched.c文件的‘bfq_idle_slice_timer_body’函数存在资源管理错误漏洞，本地攻击者可借助特制请求利用该漏洞在系统上执行任意代码或导致拒绝服务。
Severity: 中
Patch Name: Linux kernel资源管理错误漏洞（CNVD-2020-37937）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 5.6.5之前版本中的block/bfq-iosched.c文件的‘bfq_idle_slice_timer_body’函数存在资源管理错误漏洞，本地攻击者可借助特制请求利用该漏洞在系统上执行任意代码或导致拒绝服务。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:
厂商已发布了漏洞修复程序，请及时关注更新： https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-12657
Impacted products
| Name | Linux Linux kernel <5.6.5 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-12657",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-12657"
}
},
"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 5.6.5\u4e4b\u524d\u7248\u672c\u4e2d\u7684block/bfq-iosched.c\u6587\u4ef6\u7684\u2018bfq_idle_slice_timer_body\u2019\u51fd\u6570\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2020-37937",
"openTime": "2020-07-10",
"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 5.6.5\u4e4b\u524d\u7248\u672c\u4e2d\u7684block/bfq-iosched.c\u6587\u4ef6\u7684\u2018bfq_idle_slice_timer_body\u2019\u51fd\u6570\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u6216\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\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2020-37937\uff09\u7684\u8865\u4e01",
"products": {
"product": "Linux Linux kernel \u003c5.6.5"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-12657",
"serverity": "\u4e2d",
"submitTime": "2020-05-06",
"title": "Linux kernel\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2020-37937\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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