fkie_cve-2021-41495
Vulnerability from fkie_nvd
Published
2021-12-17 20:15
Modified
2024-11-21 06:26
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Null Pointer Dereference vulnerability exists in numpy.sort in NumPy &lt and 1.19 in the PyArray_DescrNew function due to missing return-value validation, which allows attackers to conduct DoS attacks by repetitively creating sort arrays. NOTE: While correct that validation is missing, an error can only occur due to an exhaustion of memory. If the user can exhaust memory, they are already privileged. Further, it should be practically impossible to construct an attack which can target the memory exhaustion to occur at exactly this place
References
cve@mitre.orghttps://github.com/numpy/numpy/issues/19038Exploit, Issue Tracking, Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/numpy/numpy/issues/19038Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujul2022.htmlThird Party Advisory
Impacted products
Vendor Product Version
numpy numpy *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:numpy:numpy:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "45CF1897-BE04-465C-96D5-CB5D76DF2F88",
                     versionEndIncluding: "1.19.0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [
      {
         sourceIdentifier: "cve@mitre.org",
         tags: [
            "disputed",
         ],
      },
   ],
   descriptions: [
      {
         lang: "en",
         value: "Null Pointer Dereference vulnerability exists in numpy.sort in NumPy &lt and 1.19 in the PyArray_DescrNew function due to missing return-value validation, which allows attackers to conduct DoS attacks by repetitively creating sort arrays. NOTE: While correct that validation is missing, an error can only occur due to an exhaustion of memory. If the user can exhaust memory, they are already privileged. Further, it should be practically impossible to construct an attack which can target the memory exhaustion to occur at exactly this place",
      },
      {
         lang: "es",
         value: "** EN DISPUTA ** Se presenta una vulnerabilidad de Desreferencia de Puntero Null en el archivo numpy.sort en NumPy versión 1.19, en la función PyArray_DescrNew debido a una falta de comprobación del valor de retorno, lo que permite a atacantes llevar a cabo ataques de denegación de servicio mediante la creación y ordenación repetitiva de arrays. NOTA: Si bien es correcto que falta la validación, sólo puede producirse un error debido a un agotamiento de la memoria. Si el usuario puede agotar la memoria, ya es privilegiado. Además, debería ser prácticamente imposible construir un ataque que pueda dirigirse al agotamiento de la memoria para que ocurra exactamente en este lugar",
      },
   ],
   id: "CVE-2021-41495",
   lastModified: "2024-11-21T06:26:18.940",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "LOW",
            cvssData: {
               accessComplexity: "MEDIUM",
               accessVector: "NETWORK",
               authentication: "SINGLE",
               availabilityImpact: "PARTIAL",
               baseScore: 3.5,
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               vectorString: "AV:N/AC:M/Au:S/C:N/I:N/A:P",
               version: "2.0",
            },
            exploitabilityScore: 6.8,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "HIGH",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 5.3,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
               version: "3.1",
            },
            exploitabilityScore: 1.6,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2021-12-17T20:15:08.477",
   references: [
      {
         source: "cve@mitre.org",
         tags: [
            "Exploit",
            "Issue Tracking",
            "Third Party Advisory",
         ],
         url: "https://github.com/numpy/numpy/issues/19038",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://www.oracle.com/security-alerts/cpujul2022.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Exploit",
            "Issue Tracking",
            "Third Party Advisory",
         ],
         url: "https://github.com/numpy/numpy/issues/19038",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://www.oracle.com/security-alerts/cpujul2022.html",
      },
   ],
   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-476",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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