CVE-2023-2911 (GCVE-0-2023-2911)

Vulnerability from cvelistv5 – Published: 2023-06-21 16:26 – Updated: 2025-02-13 16:49
VLAI
Title
Exceeding the recursive-clients quota may cause named to terminate unexpectedly when stale-answer-client-timeout is set to 0
Summary
If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow. This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
isc
References
Impacted products
Vendor Product Version
ISC BIND 9 Affected: 9.16.33 , ≤ 9.16.41 (custom)
Affected: 9.18.7 , ≤ 9.18.15 (custom)
Affected: 9.16.33-S1 , ≤ 9.16.41-S1 (custom)
Affected: 9.18.11-S1 , ≤ 9.18.15-S1 (custom)
Create a notification for this product.
Date Public
2023-06-21 00:00
Show details on NVD website
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      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://kb.isc.org/docs/cve-2023-2911\", \"name\": \"CVE-2023-2911\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2023/06/21/6\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://www.debian.org/security/2023/dsa-5439\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEFCEVCTYEMKTWA7V7EYPI5YQQ4JWDLI/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20230703-0010/\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T06:41:03.760Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-2911\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-12-06T18:32:18.833805Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-12-06T18:32:22.652Z\"}}], \"cna\": {\"title\": \"Exceeding the recursive-clients quota may cause named to terminate unexpectedly when stale-answer-client-timeout is set to 0\", \"source\": {\"discovery\": \"INTERNAL\"}, \"impacts\": [{\"descriptions\": [{\"lang\": \"en\", \"value\": \"By sending specific queries to the resolver, an attacker can cause `named` to terminate unexpectedly.\"}]}], \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"ISC\", \"product\": \"BIND 9\", \"versions\": [{\"status\": \"affected\", \"version\": \"9.16.33\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"9.16.41\"}, {\"status\": \"affected\", \"version\": \"9.18.7\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"9.18.15\"}, {\"status\": \"affected\", \"version\": \"9.16.33-S1\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"9.16.41-S1\"}, {\"status\": \"affected\", \"version\": \"9.18.11-S1\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"9.18.15-S1\"}], \"defaultStatus\": \"unaffected\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"This flaw was discovered in internal testing. 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The limit cannot be disabled entirely.\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow.\\nThis issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.\"}], \"providerMetadata\": {\"orgId\": \"404fd4d2-a609-4245-b543-2c944a302a22\", \"shortName\": \"isc\", \"dateUpdated\": \"2023-07-03T15:06:21.382Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-2911\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-13T16:49:00.351Z\", \"dateReserved\": \"2023-05-26T11:20:45.872Z\", \"assignerOrgId\": \"404fd4d2-a609-4245-b543-2c944a302a22\", \"datePublished\": \"2023-06-21T16:26:36.587Z\", \"assignerShortName\": \"isc\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.