GSD-2021-1252

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.
Aliases
Aliases
CVE-2021-1252
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{
  "GSD": {
    "alias": "CVE-2021-1252",
    "description": "A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.",
    "id": "GSD-2021-1252",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-1252.html",
      "https://ubuntu.com/security/CVE-2021-1252",
      "https://security.archlinux.org/CVE-2021-1252"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-1252"
      ],
      "details": "A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.",
      "id": "GSD-2021-1252",
      "modified": "2023-12-13T01:23:22.784829Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "psirt@cisco.com",
        "DATE_PUBLIC": "2021-04-08T12:08:00.000Z",
        "ID": "CVE-2021-1252",
        "STATE": "PUBLIC",
        "TITLE": "Clam AntiVirus (ClamAV) Excel XLM Parser Denial of Service Vulnerability"
      },
      "affects": {
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            {
              "product": {
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                    "product_name": "ClamAV",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "0.103.0"
                        },
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                          "version_affected": "=",
                          "version_value": "0.103.1"
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          }
        ]
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          "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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          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-20 Improper Input Validation"
              }
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          }
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html",
            "refsource": "CISCO",
            "url": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html"
          }
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      },
      "source": {
        "advisory": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html",
        "discovery": "UNKNOWN"
      }
    },
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        "nodes": [
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:clamav:clamav:0.103.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
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        "description": {
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              "value": "A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition."
            }
          ]
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              "description": [
                {
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                  "value": "CWE-835"
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            {
              "name": "https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html",
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      },
      "impact": {
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            "accessVector": "NETWORK",
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            "availabilityImpact": "COMPLETE",
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
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          "exploitabilityScore": 10.0,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
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            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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        }
      },
      "lastModifiedDate": "2022-08-05T17:18Z",
      "publishedDate": "2021-04-08T05:15Z"
    }
  }
}


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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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