gsd-2020-28196
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.
Aliases
Aliases
CVE-2020-28196


To clipboard 

{
   GSD: {
      alias: "CVE-2020-28196",
      description: "MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.",
      id: "GSD-2020-28196",
      references: [
         "https://www.suse.com/security/cve/CVE-2020-28196.html",
         "https://www.debian.org/security/2020/dsa-4795",
         "https://access.redhat.com/errata/RHSA-2021:2239",
         "https://access.redhat.com/errata/RHSA-2021:1593",
         "https://ubuntu.com/security/CVE-2020-28196",
         "https://advisories.mageia.org/CVE-2020-28196.html",
         "https://linux.oracle.com/cve/CVE-2020-28196.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2020-28196",
         ],
         details: "MIT Kerberos 5 (aka krb5) before 1.17.2 and 1.18.x before 1.18.3 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit.",
         id: "GSD-2020-28196",
         modified: "2023-12-13T01:22:01.630413Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
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            ASSIGNER: "cve@mitre.org",
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            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "n/a",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "n/a",
                                    },
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                              },
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         },
         references: {
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                  name: "[debian-lts-announce] 20201107 [SECURITY] [DLA 2437-1] krb5 security update",
                  refsource: "MLIST",
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      },
      "nvd.nist.gov": {
         configurations: {
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         },
         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: "2022-05-12T14:47Z",
         publishedDate: "2020-11-06T08:15Z",
      },
   },
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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