fkie_cve-2021-36222
Vulnerability from fkie_nvd
Published
2021-07-22 18:15
Modified
2024-11-21 06:13
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.
References
cve@mitre.orghttps://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562Patch, Third Party Advisory
cve@mitre.orghttps://github.com/krb5/krb5/releasesRelease Notes, Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20211104-0007/Third Party Advisory
cve@mitre.orghttps://web.mit.edu/kerberos/advisories/Not Applicable
cve@mitre.orghttps://www.debian.org/security/2021/dsa-4944Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/krb5/krb5/releasesRelease Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211022-0003/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211104-0007/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://web.mit.edu/kerberos/advisories/Not Applicable
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4944Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
Impacted products
Vendor Product Version
mit kerberos_5 *
mit kerberos_5 *
debian debian_linux 10.0
netapp active_iq_unified_manager -
netapp active_iq_unified_manager -
netapp oncommand_insight -
netapp oncommand_workflow_automation -
netapp snapcenter -
oracle mysql_server *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
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                     matchCriteriaId: "2E53BDCF-4782-44E2-BDDE-306701FBC042",
                     versionEndExcluding: "1.18.4",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "54E20AF1-B697-4F21-88FE-AB2D937CEA76",
                     versionEndExcluding: "1.19.2",
                     versionStartIncluding: "1.19.0",
                     vulnerable: true,
                  },
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               negate: false,
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                     versionEndIncluding: "8.0.26",
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   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation.",
      },
      {
         lang: "es",
         value: "La función ec_verify en el archivo kdc/kdc_preauth_ec.c en el Centro de Distribución de Claves (KDC) en MIT Kerberos 5 (también se conoce como krb5) versiones anteriores a 1.18.4 y versiones 1.19.x  anteriores a 1.19.2, permite a atacantes remotos causar una desreferencia de puntero NULL y un bloqueo del daemon. Esto ocurre porque un valor de retorno no es manejado apropiadamente en una situación determinada",
      },
   ],
   id: "CVE-2021-36222",
   lastModified: "2024-11-21T06:13:20.520",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "PARTIAL",
               baseScore: 5,
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
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            cvssData: {
               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",
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            },
            exploitabilityScore: 3.9,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
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   published: "2021-07-22T18:15:23.337",
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         url: "https://security.netapp.com/advisory/ntap-20211104-0007/",
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         tags: [
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   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-476",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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