Vulnerability-Lookup

OESA-2021-1206 (CVE-2021-25214)

Vulnerability from osv_openeuler – Published: 2021-06-07 11:04 – Updated: 2026-08-06 11:04 – Source website

Summary

bind security update

Details

Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols and provides an openly redistributable reference implementation of the major components of the Domain Name System. This package includes the components to operate a DNS server.

Security Fix(es):

In BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.(CVE-2021-25214)

In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.(CVE-2021-25215)

Severity

6.5 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://openeuler.org/en/security/safety-bulletin…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-25214	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2021-25215	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "bind-debugsource-9.11.21-6.oe1.aarch64.rpm",
          "bind-debuginfo-9.11.21-6.oe1.aarch64.rpm",
          "bind-chroot-9.11.21-6.oe1.aarch64.rpm",
          "bind-pkcs11-9.11.21-6.oe1.aarch64.rpm",
          "bind-devel-9.11.21-6.oe1.aarch64.rpm",
          "bind-utils-9.11.21-6.oe1.aarch64.rpm",
          "bind-pkcs11-devel-9.11.21-6.oe1.aarch64.rpm",
          "bind-libs-lite-9.11.21-6.oe1.aarch64.rpm",
          "bind-9.11.21-6.oe1.aarch64.rpm",
          "bind-libs-9.11.21-6.oe1.aarch64.rpm",
          "bind-export-libs-9.11.21-6.oe1.aarch64.rpm",
          "bind-export-devel-9.11.21-6.oe1.aarch64.rpm"
        ],
        "noarch": [
          "python3-bind-9.11.21-6.oe1.noarch.rpm"
        ],
        "src": [
          "bind-9.11.21-6.oe1.src.rpm"
        ],
        "x86_64": [
          "bind-libs-9.11.21-6.oe1.x86_64.rpm",
          "bind-debugsource-9.11.21-6.oe1.x86_64.rpm",
          "bind-utils-9.11.21-6.oe1.x86_64.rpm",
          "bind-chroot-9.11.21-6.oe1.x86_64.rpm",
          "bind-debuginfo-9.11.21-6.oe1.x86_64.rpm",
          "bind-libs-lite-9.11.21-6.oe1.x86_64.rpm",
          "bind-devel-9.11.21-6.oe1.x86_64.rpm",
          "bind-9.11.21-6.oe1.x86_64.rpm",
          "bind-pkcs11-9.11.21-6.oe1.x86_64.rpm",
          "bind-export-devel-9.11.21-6.oe1.x86_64.rpm",
          "bind-pkcs11-devel-9.11.21-6.oe1.x86_64.rpm",
          "bind-export-libs-9.11.21-6.oe1.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:20.03-LTS-SP1",
        "name": "bind",
        "purl": "pkg:rpm/openEuler/bind\u0026distro=openEuler-20.03-LTS-SP1"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.11.21-6.oe1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols and provides an openly redistributable reference implementation of the major components of the Domain Name System. This package includes the components to operate a DNS server.\r\n\r\nSecurity Fix(es):\r\n\r\nIn BIND 9.8.5 -\u0026gt; 9.8.8, 9.9.3 -\u0026gt; 9.11.29, 9.12.0 -\u0026gt; 9.16.13, and versions BIND 9.9.3-S1 -\u0026gt; 9.11.29-S1 and 9.16.8-S1 -\u0026gt; 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -\u0026gt; 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a malformed IXFR triggering the flaw described above, the named process will terminate due to a failed assertion the next time the transferred secondary zone is refreshed.(CVE-2021-25214)\r\n\r\nIn BIND 9.0.0 -\u0026gt; 9.11.29, 9.12.0 -\u0026gt; 9.16.13, and versions BIND 9.9.3-S1 -\u0026gt; 9.11.29-S1 and 9.16.8-S1 -\u0026gt; 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -\u0026gt; 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.(CVE-2021-25215)",
  "id": "OESA-2021-1206",
  "modified": "2026-08-06T11:04:26Z",
  "published": "2021-06-07T11:04:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1206"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25214"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-25215"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "bind security update",
  "upstream": [
    "CVE-2021-25214",
    "CVE-2021-25215"
  ]
}

CVE-2021-25214 (GCVE-0-2021-25214)

Vulnerability from cvelistv5 – Published: 2021-04-29 00:55 – Updated: 2024-09-17 00:37

Title

A broken inbound incremental zone update (IXFR) can cause named to terminate unexpectedly

Summary

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

Incremental zone transfers (IXFR) provide a way of transferring changed portion(s) of a zone between servers. An IXFR stream containing SOA records with an owner name other than the transferred zone's apex may cause the receiving named server to inadvertently remove the SOA record for the zone in question from the zone database. This leads to an assertion failure when the next SOA refresh query for that zone is made. Affects BIND 9.8.5 -> 9.8.8, 9.9.3 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch.

Assigner

isc mitre root

References

11 references

URL	Tags
https://kb.isc.org/v1/docs/cve-2021-25214	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2021/04/29/1	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/04/29/2	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/04/29/3	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/04/29/4	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4909	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.netapp.com/advisory/ntap-2021052…	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
ISC	BIND9	Affected: Open Source Branch 9.8 9.8.5 through 9.8.8 Affected: Open Source Branches 9.9 through 9.11 9.9.3 through versions before 9.11.30 Affected: Open Source Branches 9.12 through 9.16 9.12.0 through versions before 9.16.14 Affected: Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions before 9.11.30-S1 Affected: Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.14-S1 Affected: Development Branch 9.17 9.17.0 through versiosn before 9.17.12

Date Public

2021-04-28 00:00

Credits

ISC would like to thank Greg Kuechle of SaskTel for bringing this vulnerability to our attention.

Show details on NVD website

JSON

To clipboard

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        "title": "CVE Program Container"
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    "cna": {
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          "product": "BIND9",
          "vendor": "ISC",
          "versions": [
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              "status": "affected",
              "version": "Open Source Branch 9.8 9.8.5 through 9.8.8"
            },
            {
              "status": "affected",
              "version": "Open Source Branches 9.9 through 9.11 9.9.3 through versions before 9.11.30"
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            {
              "status": "affected",
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            {
              "status": "affected",
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            }
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        }
      ],
      "credits": [
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          "lang": "en",
          "value": "ISC would like to thank Greg Kuechle of SaskTel for bringing this vulnerability to our attention."
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      "descriptions": [
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        }
      ],
      "exploits": [
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            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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          "descriptions": [
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              "description": "Incremental zone transfers (IXFR) provide a way of transferring changed portion(s) of a zone between servers. An IXFR stream containing SOA records with an owner name other than the transferred zone\u0027s apex may cause the receiving named server to inadvertently remove the SOA record for the zone in question from the zone database. This leads to an assertion failure when the next SOA refresh query for that zone is made.  Affects BIND 9.8.5 -\u003e 9.8.8, 9.9.3 -\u003e 9.11.29, 9.12.0 -\u003e 9.16.13, and versions BIND 9.9.3-S1 -\u003e 9.11.29-S1 and 9.16.8-S1 -\u003e 9.16.13-S1 of BIND 9 Supported Preview Edition, as well as release versions 9.17.0 -\u003e 9.17.11 of the BIND 9.17 development branch.",
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      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.11.31\n    BIND 9.16.15\n    BIND 9.17.12\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.11.31-S1\n    BIND 9.16.15-S1"
        }
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          "value": "Disabling incremental zone transfers (IXFR) by setting request-ixfr no; in the desired configuration block (options, zone, or server) prevents the failing assertion from being evaluated."
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CVE-2021-25215 (GCVE-0-2021-25215)

Vulnerability from cvelistv5 – Published: 2021-04-29 00:55 – Updated: 2024-09-16 22:02

Title

An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

DNAME records, described in RFC 6672, provide a way to redirect a subtree of the domain name tree in the DNS. A flaw in the way named processes these records may trigger an attempt to add the same RRset to the ANSWER section more than once. This causes an assertion check in BIND to fail. DNAME records are processed by both authoritative and recursive servers. For authoritative servers, the DNAME record triggering the flaw can be retrieved from a zone database. For servers performing recursion, such a record is processed in the course of a query sent to an authoritative server. Affects BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch.

Assigner

isc mitre root

References

12 references

URL	Tags
https://kb.isc.org/v1/docs/cve-2021-25215	x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2021/04/29/1	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/04/29/2	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/04/29/3	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/04/29/4	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-4909	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://www.oracle.com/security-alerts/cpuoct2021.html	x_refsource_MISC
https://security.netapp.com/advisory/ntap-2021052…	x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/s…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
ISC	BIND9	Affected: Open Source Branches 9.0 through 9.11 9.0.0 through versions before 9.11.30 Affected: Open Source Branches 9.12 through 9.16 9.12.0 through versions before 9.16.14 Affected: Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions before 9.11.30-S1 Affected: Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.14-S1 Affected: Development Branch 9.17 9.17.0 through versiosn before 9.17.12

Date Public

2021-04-28 00:00

Credits

ISC would like to thank Siva Kakarla for bringing this vulnerability to our attention.

Show details on NVD website

JSON

To clipboard

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            {
              "lang": "eng",
              "value": "In BIND 9.0.0 -\u003e 9.11.29, 9.12.0 -\u003e 9.16.13, and versions BIND 9.9.3-S1 -\u003e 9.11.29-S1 and 9.16.8-S1 -\u003e 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -\u003e 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "We are not aware of any active exploits."
          }
        ],
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "DNAME records, described in RFC 6672, provide a way to redirect a subtree of the domain name tree in the DNS. A flaw in the way named processes these records may trigger an attempt to add the same RRset to the ANSWER section more than once. This causes an assertion check in BIND to fail.  DNAME records are processed by both authoritative and recursive servers. For authoritative servers, the DNAME record triggering the flaw can be retrieved from a zone database. For servers performing recursion, such a record is processed in the course of a query sent to an authoritative server.  Affects BIND 9.0.0 -\u003e 9.11.29, 9.12.0 -\u003e 9.16.13, and versions BIND 9.9.3-S1 -\u003e 9.11.29-S1 and 9.16.8-S1 -\u003e 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -\u003e 9.17.11 of the BIND 9.17 development branch."
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kb.isc.org/v1/docs/cve-2021-25215",
              "refsource": "CONFIRM",
              "url": "https://kb.isc.org/v1/docs/cve-2021-25215"
            },
            {
              "name": "[oss-security] 20210428 ISC discloses three BIND vulnerabilities (CVE-2021-25214, CVE-2021-25215, and CVE-2021-25216)",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/04/29/1"
            },
            {
              "name": "[oss-security] 20210429 Re: ISC discloses three BIND vulnerabilities (CVE-2021-25214, CVE-2021-25215, and CVE-2021-25216)",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/04/29/2"
            },
            {
              "name": "[oss-security] 20210429 Re: ISC discloses three BIND vulnerabilities (CVE-2021-25214, CVE-2021-25215, and CVE-2021-25216)",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/04/29/3"
            },
            {
              "name": "[oss-security] 20210429 Re: ISC discloses three BIND vulnerabilities (CVE-2021-25214, CVE-2021-25215, and CVE-2021-25216)",
              "refsource": "MLIST",
              "url": "http://www.openwall.com/lists/oss-security/2021/04/29/4"
            },
            {
              "name": "DSA-4909",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4909"
            },
            {
              "name": "[debian-lts-announce] 20210504 [SECURITY] [DLA 2647-1] bind9 security update",
              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00001.html"
            },
            {
              "name": "FEDORA-2021-ace61cbee1",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VEC2XG4Q2ODTN2C4CGXEIXU3EUTBMK7L/"
            },
            {
              "name": "FEDORA-2021-47f23870ec",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZDSRPCJQ7MZC6CENH5PO3VQOFI7VSWBE/"
            },
            {
              "name": "https://www.oracle.com/security-alerts/cpuoct2021.html",
              "refsource": "MISC",
              "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210521-0006/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210521-0006/"
            },
            {
              "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf",
              "refsource": "CONFIRM",
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
            }
          ]
        },
        "solution": [
          {
            "lang": "en",
            "value": "Upgrade to the patched release most closely related to your current version of BIND:\n\n    BIND 9.11.31\n    BIND 9.16.15\n    BIND 9.17.12\n\nBIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.\n\n    BIND 9.11.31-S1\n    BIND 9.16.15-S1"
          }
        ],
        "source": {
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "No workarounds known."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2021-25215",
    "datePublished": "2021-04-29T00:55:16.726Z",
    "dateReserved": "2021-01-15T00:00:00.000Z",
    "dateUpdated": "2024-09-16T22:02:24.791Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2021-1206 (CVE-2021-25214)

CVE-2021-25214 (GCVE-0-2021-25214)

CVE-2021-25215 (GCVE-0-2021-25215)

Tags

Sightings

Nomenclature

Related by attack behaviour