FKIE_CVE-2023-46049

Vulnerability from fkie_nvd - Published: 2024-03-27 06:15 - Updated: 2026-06-17 06:29
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
LLVM 15.0.0 has a NULL pointer dereference in the parseOneMetadata() function via a crafted pdflatex.fmt file (or perhaps a crafted .o file) to llvm-lto. NOTE: this is disputed because the relationship between pdflatex.fmt and any LLVM language front end is not explained, and because a crash of the llvm-lto application should be categorized as a usability problem.
References
cve@mitre.orghttp://seclists.org/fulldisclosure/2024/Jan/66
cve@mitre.orghttps://github.com/llvm/llvm-project/issues/67388
cve@mitre.orghttps://llvm.org/docs/Security.html
af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/176820/llvm-LLVM-15-Null-Pointer.html
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2024/Jan/66
af854a3a-2127-422b-91ae-364da2661108https://github.com/llvm/llvm-project/issues/67388
af854a3a-2127-422b-91ae-364da2661108https://llvm.org/docs/Security.html
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "cveTags": [
    {
      "sourceIdentifier": "cve@mitre.org",
      "tags": [
        "disputed"
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "LLVM 15.0.0 has a NULL pointer dereference in the parseOneMetadata() function via a crafted pdflatex.fmt file (or perhaps a crafted .o file) to llvm-lto. NOTE: this is disputed because the relationship between pdflatex.fmt and any LLVM language front end is not explained, and because a crash of the llvm-lto application should be categorized as a usability problem."
    },
    {
      "lang": "es",
      "value": "LLVM 15.0.0 tiene una desreferencia de puntero NULL en la funci\u00f3n parseOneMetadata() a trav\u00e9s de un archivo pdflatex.fmt modificado (o quiz\u00e1s un archivo .o modificado) a llvm-lto. NOTA: esto est\u00e1 en disputa porque no se explica la relaci\u00f3n entre pdflatex.fmt y cualquier interfaz de lenguaje LLVM, y porque una falla de la aplicaci\u00f3n llvm-lto debe clasificarse como un problema de usabilidad."
    }
  ],
  "id": "CVE-2023-46049",
  "lastModified": "2026-06-17T06:29:56.563",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-46049",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-07-10T15:47:36.217196Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-03-27T06:15:10.037",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://seclists.org/fulldisclosure/2024/Jan/66"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/llvm/llvm-project/issues/67388"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://llvm.org/docs/Security.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://packetstormsecurity.com/files/176820/llvm-LLVM-15-Null-Pointer.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://seclists.org/fulldisclosure/2024/Jan/66"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://github.com/llvm/llvm-project/issues/67388"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://llvm.org/docs/Security.html"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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Sightings

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Nomenclature

  • 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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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.