gsd-2022-38177
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.
Aliases
Aliases
CVE-2022-38177


To clipboard 

{
  "GSD": {
    "alias": "CVE-2022-38177",
    "description": "By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.",
    "id": "GSD-2022-38177",
    "references": [
      "https://www.debian.org/security/2022/dsa-5235",
      "https://advisories.mageia.org/CVE-2022-38177.html",
      "https://access.redhat.com/errata/RHSA-2022:6763",
      "https://access.redhat.com/errata/RHSA-2022:6764",
      "https://access.redhat.com/errata/RHSA-2022:6765",
      "https://access.redhat.com/errata/RHSA-2022:6778",
      "https://access.redhat.com/errata/RHSA-2022:6779",
      "https://access.redhat.com/errata/RHSA-2022:6780",
      "https://access.redhat.com/errata/RHSA-2022:6781",
      "https://access.redhat.com/errata/RHSA-2022:8598",
      "https://www.suse.com/security/cve/CVE-2022-38177.html",
      "https://ubuntu.com/security/CVE-2022-38177"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-38177"
      ],
      "details": "By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.",
      "id": "GSD-2022-38177",
      "modified": "2023-12-13T01:19:22.168409Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "security-officer@isc.org",
        "DATE_PUBLIC": "2022-09-21T09:39:29.000Z",
        "ID": "CVE-2022-38177",
        "STATE": "PUBLIC",
        "TITLE": "Memory leak in ECDSA DNSSEC verification code"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "BIND9",
                    "version": {
                      "version_data": [
                        {
                          "version_name": "Open Source Branches 9.8 through 9.16",
                          "version_value": "9.8.4 through versions before 9.16.33"
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                        {
                          "version_name": "Supported Preview Branches 9.9-S through 9.11-S",
                          "version_value": "9.9.4-S1 through versions up to and including 9.11.37-S1"
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                          "version_name": "Supported Preview Branch 9.16-S",
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            "value": "By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources."
          }
        ]
      },
      "exploit": [
        {
          "lang": "eng",
          "value": "This flaw was discovered in internal testing. We are not aware of any active exploits."
        }
      ],
      "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"
        }
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      "problemtype": {
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            "description": [
              {
                "lang": "eng",
                "value": "In BIND 9.8.4 -\u003e 9.16.32 and versions 9.9.4-S1 -\u003e 9.11.37-S1, 9.16.8-S1 -\u003e 9.16.32-S1 of the BIND Supported Preview Edition, the DNSSEC verification code for the ECDSA algorithm leaks memory when there is a signature length mismatch."
              }
            ]
          }
        ]
      },
      "references": {
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          {
            "name": "https://kb.isc.org/docs/cve-2022-38177",
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            "url": "https://kb.isc.org/docs/cve-2022-38177"
          },
          {
            "name": "[oss-security] 20220921 ISC has disclosed six vulnerabilities in BIND (CVE-2022-2795, CVE-2022-2881, CVE-2022-2906, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178)",
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          },
          {
            "name": "[debian-lts-announce] 20221005 [SECURITY] [DLA 3138-1] bind9 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00007.html"
          },
          {
            "name": "GLSA-202210-25",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202210-25"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20221228-0010/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20221228-0010/"
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      "solution": [
        {
          "lang": "eng",
          "value": "Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.33, or for BIND Supported Preview Edition (a special feature preview branch of BIND provided to eligible ISC support customers): BIND 9.16.33-S1."
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "work_around": [
        {
          "lang": "eng",
          "value": "Disable the following algorithms in your configuration using the disable-algorithms option: ECDSAP256SHA256, ECDSAP384SHA384. Note that this causes zones signed with these algorithms to be treated as insecure."
        }
      ]
    },
    "nvd.nist.gov": {
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            }
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      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "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"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-28T18:50Z",
      "publishedDate": "2022-09-21T11:15Z"
    }
  }
}


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