cnvd-2022-68556
Vulnerability from cnvd
Title
systemd rm_rf_children()函数拒绝服务漏洞
Description
systemd是一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd rm_rf_children()函数存在拒绝服务漏洞，本地攻击者可利用此漏洞执行拒绝服务(DoS)攻击。
Severity
中
Patch Name
systemd rm_rf_children()函数拒绝服务漏洞的补丁
Patch Description
systemd是一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd rm_rf_children()函数存在拒绝服务漏洞，本地攻击者可利用此漏洞执行拒绝服务(DoS)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： http://github.com/systemd/systemd/commit/55a89ea1b4088a6d84ba0bd3cd8e648bd51f1ebf

Reference
https://nvd.nist.gov/vuln/detail/CVE-2021-3997
Impacted products
Name
systemd systemd <=250.1
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-3997",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-3997"
    }
  },
  "description": "systemd\u662f\u4e00\u6b3e\u57fa\u4e8eLinux\u7684\u7cfb\u7edf\u548c\u670d\u52a1\u7ba1\u7406\u5668\u3002\u8be5\u4ea7\u54c1\u517c\u5bb9\u4e86SysV\u548cLSB\u7684\u542f\u52a8\u811a\u672c\uff0c\u4e14\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7528\u6765\u8868\u793a\u7cfb\u7edf\u670d\u52a1\u95f4\u4f9d\u8d56\u5173\u7cfb\u7684\u6846\u67b6\u3002\n\nsystemd rm_rf_children()\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u6267\u884c\u62d2\u7edd\u670d\u52a1(DoS)\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\nhttp://github.com/systemd/systemd/commit/55a89ea1b4088a6d84ba0bd3cd8e648bd51f1ebf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-68556",
  "openTime": "2022-10-13",
  "patchDescription": "systemd\u662f\u4e00\u6b3e\u57fa\u4e8eLinux\u7684\u7cfb\u7edf\u548c\u670d\u52a1\u7ba1\u7406\u5668\u3002\u8be5\u4ea7\u54c1\u517c\u5bb9\u4e86SysV\u548cLSB\u7684\u542f\u52a8\u811a\u672c\uff0c\u4e14\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7528\u6765\u8868\u793a\u7cfb\u7edf\u670d\u52a1\u95f4\u4f9d\u8d56\u5173\u7cfb\u7684\u6846\u67b6\u3002\r\n\r\nsystemd rm_rf_children()\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u6267\u884c\u62d2\u7edd\u670d\u52a1(DoS)\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": "systemd rm_rf_children()\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "systemd systemd \u003c=250.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-3997",
  "serverity": "\u4e2d",
  "submitTime": "2022-01-14",
  "title": "systemd rm_rf_children()\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}


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