cve-2023-2829
Vulnerability from cvelistv5
Published
2023-06-21 16:26
Modified
2024-08-02 06:33
Severity
7.5 (High) - cvssV3_1 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled
References
SourceURLTags
security-officer@isc.orghttps://kb.isc.org/docs/cve-2023-2829Vendor Advisory
security-officer@isc.orghttps://security.netapp.com/advisory/ntap-20230703-0010/Third Party Advisory
Impacted products
VendorProduct
ISCBIND 9
Show details on NVD website

To clipboard 

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            "url": "https://kb.isc.org/docs/cve-2023-2829"
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "BIND 9",
          "vendor": "ISC",
          "versions": [
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              "lessThanOrEqual": "9.16.41-S1",
              "status": "affected",
              "version": "9.16.8-S1",
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      "credits": [
        {
          "lang": "en",
          "value": "ISC would like to thank Greg Kuechle from SaskTel for bringing this vulnerability to our attention."
        }
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      "datePublic": "2023-06-21T00:00:00Z",
      "descriptions": [
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          "lang": "en",
          "value": "A `named` instance configured to run as a DNSSEC-validating recursive resolver with the Aggressive Use of DNSSEC-Validated Cache (RFC 8198) option (`synth-from-dnssec`) enabled can be remotely terminated using a zone with a malformed NSEC record.\nThis issue affects BIND 9 versions 9.16.8-S1 through 9.16.41-S1 and 9.18.11-S1 through 9.18.15-S1."
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          "value": "We are not aware of any active exploits."
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            "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",
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        "orgId": "404fd4d2-a609-4245-b543-2c944a302a22",
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          "value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.42-S1 or 9.18.16-S1."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Malformed NSEC records can cause named to terminate unexpectedly when synth-from-dnssec is enabled",
      "workarounds": [
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          "lang": "en",
          "value": "Setting `synth-from-dnssec` to `no` prevents the problem."
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    "assignerShortName": "isc",
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    "datePublished": "2023-06-21T16:26:24.932Z",
    "dateReserved": "2023-05-22T07:57:43.061Z",
    "dateUpdated": "2024-08-02T06:33:05.969Z",
    "state": "PUBLISHED"
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