fkie_nvd - fkie_cve-2021-25219

FKIE_CVE-2021-25219

Vulnerability from fkie_nvd - Published: 2021-10-27 21:15 - Updated: 2024-11-21 05:54

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Summary

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.

References

URL	Tags
security-officer@isc.org	https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	Patch, Third Party Advisory
security-officer@isc.org	https://kb.isc.org/v1/docs/cve-2021-25219	Vendor Advisory
security-officer@isc.org	https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html	Mailing List, Third Party Advisory
security-officer@isc.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EF4NAVRV4H3W4GA3LGGZYUKD3HSJBAVW/
security-officer@isc.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGV7SA27CTYLGFJSPUM3V36ZWK7WWDI4/
security-officer@isc.org	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTKC4E3HUOLYN5IA4EBL4VAQSWG2ZVTX/
security-officer@isc.org	https://security.gentoo.org/glsa/202210-25	Third Party Advisory
security-officer@isc.org	https://security.netapp.com/advisory/ntap-20211118-0002/	Third Party Advisory
security-officer@isc.org	https://www.debian.org/security/2021/dsa-4994	Third Party Advisory
security-officer@isc.org	https://www.oracle.com/security-alerts/cpuapr2022.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf	Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://kb.isc.org/v1/docs/cve-2021-25219	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EF4NAVRV4H3W4GA3LGGZYUKD3HSJBAVW/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGV7SA27CTYLGFJSPUM3V36ZWK7WWDI4/
af854a3a-2127-422b-91ae-364da2661108	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTKC4E3HUOLYN5IA4EBL4VAQSWG2ZVTX/
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/202210-25	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.netapp.com/advisory/ntap-20211118-0002/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.debian.org/security/2021/dsa-4994	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.oracle.com/security-alerts/cpuapr2022.html	Third Party Advisory

Impacted products

Vendor	Product	Version
isc	bind	*
isc	bind	*
isc	bind	*
isc	bind	9.9.3
isc	bind	9.9.12
isc	bind	9.9.13
isc	bind	9.10.5
isc	bind	9.10.7
isc	bind	9.11.3
isc	bind	9.11.5
isc	bind	9.11.5
isc	bind	9.11.5
isc	bind	9.11.6
isc	bind	9.11.7
isc	bind	9.11.8
isc	bind	9.11.12
isc	bind	9.11.21
isc	bind	9.11.27
isc	bind	9.11.29
isc	bind	9.11.35
isc	bind	9.16.8
isc	bind	9.16.11
isc	bind	9.16.13
isc	bind	9.16.21
debian	debian_linux	9.0
debian	debian_linux	10.0
debian	debian_linux	11.0
fedoraproject	fedora	33
fedoraproject	fedora	34
fedoraproject	fedora	35
netapp	h300s_firmware	-
netapp	h300s	-
netapp	h500s_firmware	-
netapp	h500s	-
netapp	h700s_firmware	-
netapp	h700s	-
netapp	h300e_firmware	-
netapp	h300e	-
netapp	h500e_firmware	-
netapp	h500e	-
netapp	h700e_firmware	-
netapp	h700e	-
netapp	h410s_firmware	-
netapp	h410s	-
netapp	h410c_firmware	-
netapp	h410c	-
netapp	cloud_backup	-
siemens	sinec_infrastructure_network_services	*
oracle	http_server	12.2.1.3.0
oracle	http_server	12.2.1.4.0
oracle	zfs_storage_appliance_kit	8.8

JSON

To clipboard

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    {
      "lang": "es",
      "value": "En BIND versiones 9.3.0 posteriores a 9.11.35, versiones 9.12.0 posteriores a 9.16.21, y en versiones 9.9.3-S1 posteriores a 9.11.35-S1 y versiones 9.16.8-S1 posteriores a 9.16.21-S1 de BIND Supported Preview Edition, as\u00ed como en las versiones 9.17.0 -\u0026gt; 9.17.18 de la rama de desarrollo de BIND 9.17, una explotaci\u00f3n de servidores autoritativos rotos usando un fallo en el procesamiento de respuestas puede causar una degradaci\u00f3n en el rendimiento del resolver BIND. La forma en que est\u00e1 dise\u00f1ada actualmente la cach\u00e9 de lame hace posible que sus estructuras de datos internas crezcan casi infinitamente, lo que puede causar retrasos significativos en el procesamiento de las consultas de los clientes"
    }
  ],
  "id": "CVE-2021-25219",
  "lastModified": "2024-11-21T05:54:34.323",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "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:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security-officer@isc.org",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "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:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-10-27T21:15:07.613",
  "references": [
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
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      ],
      "url": "https://kb.isc.org/v1/docs/cve-2021-25219"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
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      "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"
    },
    {
      "source": "security-officer@isc.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EF4NAVRV4H3W4GA3LGGZYUKD3HSJBAVW/"
    },
    {
      "source": "security-officer@isc.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGV7SA27CTYLGFJSPUM3V36ZWK7WWDI4/"
    },
    {
      "source": "security-officer@isc.org",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTKC4E3HUOLYN5IA4EBL4VAQSWG2ZVTX/"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
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      "url": "https://security.gentoo.org/glsa/202210-25"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20211118-0002/"
    },
    {
      "source": "security-officer@isc.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.debian.org/security/2021/dsa-4994"
    },
    {
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      ],
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://kb.isc.org/v1/docs/cve-2021-25219"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"
    },
    {
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      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EF4NAVRV4H3W4GA3LGGZYUKD3HSJBAVW/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
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    }
  ],
  "sourceIdentifier": "security-officer@isc.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-25219 (GCVE-0-2021-25219)

Vulnerability from cvelistv5 – Published: 2021-10-27 21:10 – Updated: 2024-09-16 17:33

Title

Lame cache can be abused to severely degrade resolver performance

Summary

Severity ?

5.3 (Medium)


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

CWE

Authoritative-only BIND 9 servers are NOT vulnerable to this flaw. The purpose of a resolver's lame cache is to ensure that if an authoritative server responds to a resolver's query in a specific broken way, subsequent client queries for the same <QNAME, QTYPE> tuple do not trigger further queries to the same server for a configurable amount of time. The lame cache is enabled by setting the "lame-ttl" option in named.conf to a value greater than 0. That option is set to "lame-ttl 600;" in the default configuration, which means the lame cache is enabled by default. A successful attack exploiting this flaw causes a named resolver to spend most of its CPU time on managing and checking the lame cache. This results in client queries being responded to with large delays, and increased likelihood of DNS timeouts on client hosts. Affects BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch.

Assigner

isc

References

URL

Tags

	https://kb.isc.org/v1/docs/cve-2021-25219
	https://www.debian.org/security/2021/dsa-4994	vendor-advisory
	https://lists.debian.org/debian-lts-announce/2021…	mailing-list
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
	https://www.oracle.com/security-alerts/cpuapr2022.html
	https://cert-portal.siemens.com/productcert/pdf/s…
	https://security.netapp.com/advisory/ntap-2021111…
	https://security.gentoo.org/glsa/202210-25	vendor-advisory

Impacted products

	Vendor	Product	Version
	ISC	BIND9	Affected: Open Source Branches 9.3 through 9.11 9.3.0 through versions before 9.11.36 Affected: Open Source Branches 9.12 through 9.16 9.12.0 through versions before 9.16.22 Affected: Supported Preview Branches 9.9-S through 9.11-S 9.9.3-S1 through versions before 9.11.36-S1 Affected: Supported Preview Branch 9.16-S 9.16.8-S1 through versions before 9.16.22-S1 Affected: Development Branch 9.17 9.17.0 through versions before 9.17.19

Credits

ISC would like to thank Kishore Kumar Kothapalli of Infoblox for bringing this vulnerability to our attention.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:56:11.060Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "tags": [
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            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"
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          },
          {
            "name": "FEDORA-2021-39b33260b8",
            "tags": [
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGV7SA27CTYLGFJSPUM3V36ZWK7WWDI4/"
          },
          {
            "name": "FEDORA-2021-eb8dab50ba",
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              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EF4NAVRV4H3W4GA3LGGZYUKD3HSJBAVW/"
          },
          {
            "tags": [
              "x_transferred"
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            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
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            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf"
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              "vendor-advisory",
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        ],
        "title": "CVE Program Container"
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    "cna": {
      "affected": [
        {
          "product": "BIND9",
          "vendor": "ISC",
          "versions": [
            {
              "status": "affected",
              "version": "Open Source Branches 9.3 through 9.11 9.3.0 through versions before 9.11.36"
            },
            {
              "status": "affected",
              "version": "Open Source Branches 9.12 through 9.16 9.12.0 through versions before 9.16.22"
            },
            {
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      "descriptions": [
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          "value": "In BIND 9.3.0 -\u003e 9.11.35, 9.12.0 -\u003e 9.16.21, and versions 9.9.3-S1 -\u003e 9.11.35-S1 and 9.16.8-S1 -\u003e 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -\u003e 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing."
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            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
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          "descriptions": [
            {
              "description": "Authoritative-only BIND 9 servers are NOT vulnerable to this flaw. The purpose of a resolver\u0027s lame cache is to ensure that if an authoritative server responds to a resolver\u0027s query in a specific broken way, subsequent client queries for the same \u003cQNAME, QTYPE\u003e tuple do not trigger further queries to the same server for a configurable amount of time. The lame cache is enabled by setting the \"lame-ttl\" option in named.conf to a value greater than 0. That option is set to \"lame-ttl 600;\" in the default configuration, which means the lame cache is enabled by default. A successful attack exploiting this flaw causes a named resolver to spend most of its CPU time on managing and checking the lame cache. This results in client queries being responded to with large delays, and increased likelihood of DNS timeouts on client hosts. Affects BIND 9.3.0 -\u003e 9.11.35, 9.12.0 -\u003e 9.16.21, and versions 9.9.3-S1 -\u003e 9.11.35-S1 and 9.16.8-S1 -\u003e 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -\u003e 9.17.18 of the BIND 9.17 development branch.",
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        },
        {
          "name": "FEDORA-2021-39b33260b8",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YGV7SA27CTYLGFJSPUM3V36ZWK7WWDI4/"
        },
        {
          "name": "FEDORA-2021-eb8dab50ba",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EF4NAVRV4H3W4GA3LGGZYUKD3HSJBAVW/"
        },
        {
          "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
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        },
        {
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        },
        {
          "name": "GLSA-202210-25",
          "tags": [
            "vendor-advisory"
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          "url": "https://security.gentoo.org/glsa/202210-25"
        }
      ],
      "solutions": [
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          "lang": "en",
          "value": "Upgrade to the patched release most closely related to your current version of BIND: BIND 9.11.36, BIND 9.16.22, BIND 9.17.19, or for BIND Supported Preview Edition (a special feature preview branch of BIND provided to eligible ISC support customers): BIND 9.11.36-S1, BIND 9.16.22-S1."
        }
      ],
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        "discovery": "EXTERNAL"
      },
      "title": "Lame cache can be abused to severely degrade resolver performance",
      "workarounds": [
        {
          "lang": "en",
          "value": "Setting \"lame-ttl 0;\" disables the lame cache and prevents the performance issue. Our research and testing indicate that in the current Internet there is almost no downside to disabling the lame cache."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
    "assignerShortName": "isc",
    "cveId": "CVE-2021-25219",
    "datePublished": "2021-10-27T21:10:10.088929Z",
    "dateReserved": "2021-01-15T00:00:00",
    "dateUpdated": "2024-09-16T17:33:38.865Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

FKIE_CVE-2021-25219

CVE-2021-25219 (GCVE-0-2021-25219)

Tags

Sightings

Nomenclature