cnvd - cnvd-2020-29429

cnvd-2020-29429

Vulnerability from cnvd

Title: ISC BIND拒绝服务漏洞（CNVD-2020-29429）

Description:

ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。

ISC BIND中存在拒绝服务漏洞。远程攻击者可利用该漏洞导致拒绝服务。

Severity: 高

Patch Name: ISC BIND拒绝服务漏洞（CNVD-2020-29429）的补丁

Patch Description:

ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。

ISC BIND中存在拒绝服务漏洞。远程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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://kb.isc.org/docs/cve-2020-8617

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-8617

Impacted products

Name
['ISC BIND 9.0.0 -> 9.11.18', 'ISC BIND 9.12.0 -> 9.12.4-P2', 'ISC BIND 9.14.0 -> 9.14.11', 'ISC BIND 9.16.0 -> 9.16.2', 'ISC BIND 9.17.0 -> 9.17.1 实验版本分支', 'ISC BIND 9.13 and 9.15 所有废弃的开发分支', 'ISC BIND Supported Preview Edition from 9.9.3-S1 -> 9.11.18-S1']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8617"
    }
  },
  "description": "ISC BIND\u662f\u7f8e\u56fdISC\u516c\u53f8\u7684\u4e00\u5957\u5b9e\u73b0\u4e86DNS\u534f\u8bae\u7684\u5f00\u6e90\u8f6f\u4ef6\u3002\n\nISC BIND\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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://kb.isc.org/docs/cve-2020-8617",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-29429",
  "openTime": "2020-05-22",
  "patchDescription": "ISC BIND\u662f\u7f8e\u56fdISC\u516c\u53f8\u7684\u4e00\u5957\u5b9e\u73b0\u4e86DNS\u534f\u8bae\u7684\u5f00\u6e90\u8f6f\u4ef6\u3002\r\n\r\nISC BIND\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\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": "ISC BIND\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-29429\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "ISC BIND 9.0.0 -\u003e 9.11.18",
      "ISC BIND 9.12.0 -\u003e 9.12.4-P2",
      "ISC BIND 9.14.0 -\u003e 9.14.11",
      "ISC BIND 9.16.0 -\u003e 9.16.2",
      "ISC BIND 9.17.0 -\u003e 9.17.1 \u5b9e\u9a8c\u7248\u672c\u5206\u652f",
      "ISC BIND 9.13 and 9.15 \u6240\u6709\u5e9f\u5f03\u7684\u5f00\u53d1\u5206\u652f",
      "ISC BIND Supported Preview Edition from 9.9.3-S1 -\u003e 9.11.18-S1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-8617",
  "serverity": "\u9ad8",
  "submitTime": "2020-05-20",
  "title": "ISC BIND\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-29429\uff09"
}

CVE-2020-8617 (GCVE-0-2020-8617)

Vulnerability from cvelistv5

Published

2020-05-19 14:05

Modified

2024-09-16 20:26

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

An error in BIND code which checks the validity of messages containing TSIG resource records can be exploited by an attacker to trigger an assertion failure in tsig.c, resulting in denial of service to clients. BIND 9.0.0 -> 9.11.18, 9.12.0 -> 9.12.4-P2, 9.14.0 -> 9.14.11, 9.16.0 -> 9.16.2, and releases 9.17.0 -> 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -> 9.11.18-S1.

Summary

Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server. Since BIND, by default, configures a local session key even on servers whose configuration does not otherwise make use of it, almost all current BIND servers are vulnerable. In releases of BIND dating from March 2018 and after, an assertion check in tsig.c detects this inconsistent state and deliberately exits. Prior to the introduction of the check the server would continue operating in an inconsistent state, with potentially harmful results.

References

▼	URL	Tags
	https://kb.isc.org/docs/cve-2020-8617	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2020/05/19/4	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2020/dsa-4689	vendor-advisory, x_refsource_DEBIAN
	https://security.netapp.com/advisory/ntap-20200522-0002/	x_refsource_CONFIRM
	http://packetstormsecurity.com/files/157836/BIND-TSIG-Denial-Of-Service.html	x_refsource_MISC
	https://usn.ubuntu.com/4365-2/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/4365-1/	vendor-advisory, x_refsource_UBUNTU
	https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html	mailing-list, x_refsource_MLIST
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/	vendor-advisory, x_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html	vendor-advisory, x_refsource_SUSE

Impacted products

	Vendor	Product	Version
	ISC	BIND9	Version: 9.0.0 -> 9.11.18, 9.12.0 -> 9.12.4-P2, 9.14.0 -> 9.14.11, 9.16.0 -> 9.16.2, and releases 9.17.0 -> 9.17.1 of the 9.17 experimental development branch. All releases in the obsolete 9.13 and 9.15 development branches. All releases of BIND Supported Preview Edition from 9.9.3-S1 -> 9.11.18-S1

Show details on NVD website

JSON

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              "refsource": "UBUNTU",
              "url": "https://usn.ubuntu.com/4365-1/"
            },
            {
              "name": "[debian-lts-announce] 20200530 [SECURITY] [DLA 2227-1] bind9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00031.html"
            },
            {
              "name": "FEDORA-2020-2d89cbcfd9",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WOGCJS2XQ3SQNF4W6GLZ73LWZJ6ZZWZI/"
            },
            {
              "name": "FEDORA-2020-f9dcd4e9d5",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JKJXVBOKZ36ER3EUCR7VRB7WGHIIMPNJ/"
            },
            {
              "name": "openSUSE-SU-2020:1699",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00041.html"
            },
            {
              "name": "openSUSE-SU-2020:1701",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00044.html"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.11.19\n    BIND 9.14.12\n    BIND 9.16.3\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.11.19-S1"
          }
        ],
        "source": {
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "None known."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2020-8617",
    "datePublished": "2020-05-19T14:05:16.241486Z",
    "dateReserved": "2020-02-05T00:00:00",
    "dateUpdated": "2024-09-16T20:26:32.566Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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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