FKIE_CVE-2023-41104

Vulnerability from fkie_nvd - Published: 2023-08-23 07:15 - Updated: 2026-06-17 06:20
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Summary
libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding, leading to both authentication bypass and information disclosure; however, the exact attack surface will depend on the particular VCL (Varnish Configuration Language) configuration in use.
References
cve@mitre.orghttps://docs.varnish-software.com/security/VSV00012/Mitigation, Vendor Advisory
cve@mitre.orghttps://github.com/varnish/libvmod-digest/releases/tag/libvmod-digest-1.0.3Release Notes
cve@mitre.orghttps://www.varnish-cache.org/security/VSV00012.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://docs.varnish-software.com/security/VSV00012/Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/varnish/libvmod-digest/releases/tag/libvmod-digest-1.0.3Release Notes
af854a3a-2127-422b-91ae-364da2661108https://www.varnish-cache.org/security/VSV00012.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
varnish-software varnish_enterprise *
varnish-software varnish_enterprise 6.0.11
varnish-software varnish_enterprise 6.0.11
varnish-software varnish_enterprise 6.0.11
varnish-software varnish_enterprise 6.0.11
varnish-software varnish_enterprise 6.0.11
varnish-software vmod_digest *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:libvmod_digest:libvmod_digest:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "libvmod_digest",
          "vendor": "libvmod_digest",
          "versions": [
            {
              "lessThan": "1.0.3",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "lessThan": "6.0.11r5",
              "status": "affected",
              "version": "varnish_enterprise_6.0x",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:varnish-software:varnish_enterprise:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E51F4EF4-1AFE-4395-904D-FDDE83B19CFB",
              "versionEndExcluding": "6.0.11",
              "versionStartIncluding": "6.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:varnish-software:varnish_enterprise:6.0.11:-:*:*:*:*:*:*",
              "matchCriteriaId": "48190A61-CD4F-4C9D-8C82-13A14470BA58",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:varnish-software:varnish_enterprise:6.0.11:r1:*:*:*:*:*:*",
              "matchCriteriaId": "943E3FE8-EA6D-4500-8014-697A9A0CEF91",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:varnish-software:varnish_enterprise:6.0.11:r2:*:*:*:*:*:*",
              "matchCriteriaId": "F2CBF396-441D-44F2-BAFF-D3B2A981FBCD",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:varnish-software:varnish_enterprise:6.0.11:r3:*:*:*:*:*:*",
              "matchCriteriaId": "136343D5-80C1-4F83-8471-2C26F9FD492A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:varnish-software:varnish_enterprise:6.0.11:r4:*:*:*:*:*:*",
              "matchCriteriaId": "A34B5F57-B86F-41CB-A3D8-9084960D3E45",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:varnish-software:vmod_digest:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "739EF024-4944-4B7B-8872-843CECF9F928",
              "versionEndExcluding": "1.0.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "libvmod-digest before 1.0.3, as used in Varnish Enterprise 6.0.x before 6.0.11r5, has an out-of-bounds memory access during base64 decoding, leading to both authentication bypass and information disclosure; however, the exact attack surface will depend on the particular VCL (Varnish Configuration Language) configuration in use."
    }
  ],
  "id": "CVE-2023-41104",
  "lastModified": "2026-06-17T06:20:36.110",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-41104",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-03T14:05:23.534570Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-08-23T07:15:08.417",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://docs.varnish-software.com/security/VSV00012/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/varnish/libvmod-digest/releases/tag/libvmod-digest-1.0.3"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.varnish-cache.org/security/VSV00012.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://docs.varnish-software.com/security/VSV00012/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/varnish/libvmod-digest/releases/tag/libvmod-digest-1.0.3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "url": "https://www.varnish-cache.org/security/VSV00012.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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