cve-2023-4236
Vulnerability from cvelistv5
Published
2023-09-20 12:32
Modified
2024-08-02 07:24
Summary
named may terminate unexpectedly under high DNS-over-TLS query load
References
security-officer@isc.orghttp://www.openwall.com/lists/oss-security/2023/09/20/2Mailing List, Third Party Advisory
security-officer@isc.orghttps://kb.isc.org/docs/cve-2023-4236Vendor Advisory
security-officer@isc.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/Mailing List
security-officer@isc.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/Mailing List
security-officer@isc.orghttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/Mailing List, Third Party Advisory
security-officer@isc.orghttps://security.netapp.com/advisory/ntap-20231013-0004/Third Party Advisory
security-officer@isc.orghttps://www.debian.org/security/2023/dsa-5504Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/09/20/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://kb.isc.org/docs/cve-2023-4236Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPJLLTJCSDJJII7IIZPLTBQNWP7MZH7F/Mailing List
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U35OARLQCPMVCBBPHWBXY5M6XJLD2TZ5/Mailing List
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VSK5V4W4OHPM3JTJGWAQD6CZW7SFD75B/Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20231013-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5504Third Party Advisory
Impacted products
Vendor Product Version
Show details on NVD website


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        ],
        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "BIND 9",
          "vendor": "ISC",
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              "lessThanOrEqual": "9.18.18",
              "status": "affected",
              "version": "9.18.0",
              "versionType": "custom"
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      ],
      "credits": [
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          "lang": "en",
          "value": "ISC would like to thank Robert Story from the USC/ISI DNS root server operations team for bringing this vulnerability to our attention."
        }
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      "datePublic": "2023-09-20T00:00:00Z",
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          "value": "A flaw in the networking code handling DNS-over-TLS queries may cause `named` to terminate unexpectedly due to an assertion failure. This happens when internal data structures are incorrectly reused under significant DNS-over-TLS query load.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.18 and 9.18.11-S1 through 9.18.18-S1."
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      "exploits": [
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          "value": "We are not aware of any active exploits."
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              "value": "A `named` instance vulnerable to this flaw may terminate unexpectedly when subjected to significant DNS-over-TLS query load.\n\nThis flaw does not affect DNS-over-HTTPS code, as that uses a different TLS implementation."
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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    "assignerShortName": "isc",
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    "dateReserved": "2023-08-08T10:23:50.680Z",
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    "state": "PUBLISHED"
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  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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