cnvd - cnvd-2020-47966

cnvd-2020-47966

Vulnerability from cnvd

Title: FreeBSD竞争条件问题漏洞（CNVD-2020-47966）

Description:

FreeBSD是FreeBSD基金会的一套类Unix操作系统。

FreeBSD中处理参数的过程存在竞争条件问题漏洞。攻击者可利用该漏洞提升权限并在内核的上下文中执行代码。

Severity: 中

Patch Name: FreeBSD竞争条件问题漏洞（CNVD-2020-47966）的补丁

Patch Description:

FreeBSD是FreeBSD基金会的一套类Unix操作系统。

FreeBSD中处理参数的过程存在竞争条件问题漏洞。攻击者可利用该漏洞提升权限并在内核的上下文中执行代码。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.freebsd.org/security/advisories/FreeBSD-SA-20:23.sendmsg.asc

Reference: https://www.zerodayinitiative.com/advisories/ZDI-20-949/

Impacted products

Name
['FreeBSD Freebsd 12.1-STABLE，<r363918', 'FreeBSD Freebsd 12.1-RELEASE，<p8', 'FreeBSD Freebsd 11.4-STABLE，<r363919', 'FreeBSD Freebsd 11.4-RELEASE，<p2', 'FreeBSD Freebsd 11.3-RELEASE，<p12']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7460",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-7460"
    }
  },
  "description": "FreeBSD\u662fFreeBSD\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nFreeBSD\u4e2d\u5904\u7406\u53c2\u6570\u7684\u8fc7\u7a0b\u5b58\u5728\u7ade\u4e89\u6761\u4ef6\u95ee\u9898\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\u5e76\u5728\u5185\u6838\u7684\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.freebsd.org/security/advisories/FreeBSD-SA-20:23.sendmsg.asc",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-47966",
  "openTime": "2020-08-25",
  "patchDescription": "FreeBSD\u662fFreeBSD\u57fa\u91d1\u4f1a\u7684\u4e00\u5957\u7c7bUnix\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nFreeBSD\u4e2d\u5904\u7406\u53c2\u6570\u7684\u8fc7\u7a0b\u5b58\u5728\u7ade\u4e89\u6761\u4ef6\u95ee\u9898\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\u6743\u9650\u5e76\u5728\u5185\u6838\u7684\u4e0a\u4e0b\u6587\u4e2d\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": "FreeBSD\u7ade\u4e89\u6761\u4ef6\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2020-47966\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "FreeBSD Freebsd 12.1-STABLE\uff0c\u003cr363918",
      "FreeBSD Freebsd 12.1-RELEASE\uff0c\u003cp8",
      "FreeBSD Freebsd 11.4-STABLE\uff0c\u003cr363919",
      "FreeBSD Freebsd 11.4-RELEASE\uff0c\u003cp2",
      "FreeBSD Freebsd 11.3-RELEASE\uff0c\u003cp12"
    ]
  },
  "referenceLink": "https://www.zerodayinitiative.com/advisories/ZDI-20-949/",
  "serverity": "\u4e2d",
  "submitTime": "2020-08-10",
  "title": "FreeBSD\u7ade\u4e89\u6761\u4ef6\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2020-47966\uff09"
}

CVE-2020-7460 (GCVE-0-2020-7460)

Vulnerability from cvelistv5

Published

2020-08-06 16:49

Modified

2024-08-04 09:25

Severity ?

CWE

Kernel out of bounds write

Summary

In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.

References

▼	URL	Tags
	https://security.FreeBSD.org/advisories/FreeBSD-SA-20:23.sendmsg.asc	x_refsource_MISC
	https://www.zerodayinitiative.com/advisories/ZDI-20-949/	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20200821-0005/	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	FreeBSD	Version: FreeBSD 12.1-RELEASE before p8, 11.4-RELEASE before p2, 11.3-RELEASE before p12

Show details on NVD website

JSON

To clipboard

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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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