gsd-2021-36222
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
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.
Aliases
Aliases
CVE-2021-36222


To clipboard 

{
   GSD: {
      alias: "CVE-2021-36222",
      description: "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.",
      id: "GSD-2021-36222",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-36222.html",
         "https://www.debian.org/security/2021/dsa-4944",
         "https://access.redhat.com/errata/RHSA-2021:3576",
         "https://security.archlinux.org/CVE-2021-36222",
         "https://linux.oracle.com/cve/CVE-2021-36222.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-36222",
         ],
         details: "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.",
         id: "GSD-2021-36222",
         modified: "2023-12-13T01:23:17.127359Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "cve@mitre.org",
            ID: "CVE-2021-36222",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "n/a",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "n/a",
                                    },
                                 ],
                              },
                           },
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                     },
                     vendor_name: "n/a",
                  },
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         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
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                  lang: "eng",
                  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.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
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                        lang: "eng",
                        value: "n/a",
                     },
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         },
         references: {
            reference_data: [
               {
                  name: "https://web.mit.edu/kerberos/advisories/",
                  refsource: "MISC",
                  url: "https://web.mit.edu/kerberos/advisories/",
               },
               {
                  name: "https://github.com/krb5/krb5/releases",
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                  url: "https://github.com/krb5/krb5/releases",
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                  url: "https://www.debian.org/security/2021/dsa-4944",
               },
               {
                  name: "https://www.oracle.com/security-alerts/cpuoct2021.html",
                  refsource: "MISC",
                  url: "https://www.oracle.com/security-alerts/cpuoct2021.html",
               },
               {
                  name: "https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562",
                  refsource: "CONFIRM",
                  url: "https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562",
               },
               {
                  name: "https://security.netapp.com/advisory/ntap-20211022-0003/",
                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20211022-0003/",
               },
               {
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                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20211104-0007/",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "1.18.4",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "1.19.2",
                        versionStartIncluding: "1.19.0",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:windows:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:snapcenter:-:*:*:*:*:*:*:*",
                        cpe_name: [],
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                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndIncluding: "8.0.26",
                        versionStartIncluding: "8.0.0",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "cve@mitre.org",
               ID: "CVE-2021-36222",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     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.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-476",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://github.com/krb5/krb5/releases",
                     refsource: "MISC",
                     tags: [
                        "Release Notes",
                        "Third Party Advisory",
                     ],
                     url: "https://github.com/krb5/krb5/releases",
                  },
                  {
                     name: "https://web.mit.edu/kerberos/advisories/",
                     refsource: "MISC",
                     tags: [
                        "Not Applicable",
                     ],
                     url: "https://web.mit.edu/kerberos/advisories/",
                  },
                  {
                     name: "https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562",
                     refsource: "CONFIRM",
                     tags: [
                        "Patch",
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                     ],
                     url: "https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562",
                  },
                  {
                     name: "DSA-4944",
                     refsource: "DEBIAN",
                     tags: [
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                     ],
                     url: "https://www.debian.org/security/2021/dsa-4944",
                  },
                  {
                     name: "https://www.oracle.com/security-alerts/cpuoct2021.html",
                     refsource: "MISC",
                     tags: [
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                     url: "https://www.oracle.com/security-alerts/cpuoct2021.html",
                  },
                  {
                     name: "https://security.netapp.com/advisory/ntap-20211022-0003/",
                     refsource: "CONFIRM",
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                     url: "https://security.netapp.com/advisory/ntap-20211022-0003/",
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                     name: "https://security.netapp.com/advisory/ntap-20211104-0007/",
                     refsource: "CONFIRM",
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                     url: "https://security.netapp.com/advisory/ntap-20211104-0007/",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  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,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  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",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2021-11-28T23:19Z",
         publishedDate: "2021-07-22T18:15Z",
      },
   },
}


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