cnvd - cnvd-2020-30671

cnvd-2020-30671

Vulnerability from cnvd

Title: Unbound存在未明漏洞（CNVD-2020-30671）

Description:

Unbound是一款支持验证递归和缓存的DNS解析器。

Unbound存在未明漏洞。攻击者可利用该漏洞导致拒绝服务。

Severity: 中

Patch Name: Unbound存在未明漏洞（CNVD-2020-30671）的补丁

Patch Description:

Unbound是一款支持验证递归和缓存的DNS解析器。

Unbound存在未明漏洞。攻击者可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:

厂商已发布了漏洞修复程序，请及时关注更新： https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-12662

Impacted products

Name
NLnet Labs Unbound <1.10.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-12662"
    }
  },
  "description": "Unbound\u662f\u4e00\u6b3e\u652f\u6301\u9a8c\u8bc1\u9012\u5f52\u548c\u7f13\u5b58\u7684DNS\u89e3\u6790\u5668\u3002\n\nUnbound\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\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://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-30671",
  "openTime": "2020-05-28",
  "patchDescription": "Unbound\u662f\u4e00\u6b3e\u652f\u6301\u9a8c\u8bc1\u9012\u5f52\u548c\u7f13\u5b58\u7684DNS\u89e3\u6790\u5668\u3002\r\n\r\nUnbound\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\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": "Unbound\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2020-30671\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "NLnet Labs Unbound \u003c1.10.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-12662",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-20",
  "title": "Unbound\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2020-30671\uff09"
}

CVE-2020-12662 (GCVE-0-2020-12662)

Vulnerability from cvelistv5

Published

2020-05-19 13:50

Modified

2024-08-04 12:04

Severity ?

CWE

Summary

Unbound before 1.10.1 has Insufficient Control of Network Message Volume, aka an "NXNSAttack" issue. This is triggered by random subdomains in the NSDNAME in NS records.

References

▼	URL	Tags
	https://nlnetlabs.nl/downloads/unbound/CVE-2020-12662_2020-12663.txt	x_refsource_CONFIRM
	http://www.nxnsattack.com	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2020/05/19/5	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F5NFROI2OMCZLYRTCNGHGO3TUD32LCIQ/	vendor-advisory, x_refsource_FEDORA
	https://www.debian.org/security/2020/dsa-4694	vendor-advisory, x_refsource_DEBIAN
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/	vendor-advisory, x_refsource_FEDORA
	https://www.synology.com/security/advisory/Synology_SA_20_12	x_refsource_CONFIRM
	https://usn.ubuntu.com/4374-1/	vendor-advisory, x_refsource_UBUNTU
	http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00069.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00067.html	vendor-advisory, x_refsource_SUSE
	https://security.netapp.com/advisory/ntap-20200702-0006/	x_refsource_CONFIRM
	https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc	vendor-advisory, x_refsource_FREEBSD
	https://lists.debian.org/debian-lts-announce/2021/02/msg00017.html	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
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            "url": "http://www.nxnsattack.com"
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          {
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            "url": "https://www.synology.com/security/advisory/Synology_SA_20_12"
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          },
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              "vendor-advisory",
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          },
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            "tags": [
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              "x_transferred"
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        },
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          ],
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        {
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        },
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJ42N2HBZ3DXMSEC56SWIIOFQGOS5M7I/"
        },
        {
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          ],
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        },
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          "tags": [
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            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4374-1/"
        },
        {
          "name": "openSUSE-SU-2020:0912",
          "tags": [
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          ],
          "url": "https://security.netapp.com/advisory/ntap-20200702-0006/"
        },
        {
          "name": "FreeBSD-SA-20:19",
          "tags": [
            "vendor-advisory",
            "x_refsource_FREEBSD"
          ],
          "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:19.unbound.asc"
        },
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          "name": "[debian-lts-announce] 20210212 [SECURITY] [DLA 2556-1] unbound1.9 security update",
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          ],
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  "dataVersion": "5.1"
}

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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