gsd-2020-6821
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.
Aliases
Aliases
CVE-2020-6821


To clipboard 

{
   GSD: {
      alias: "CVE-2020-6821",
      description: "When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.",
      id: "GSD-2020-6821",
      references: [
         "https://www.suse.com/security/cve/CVE-2020-6821.html",
         "https://www.debian.org/security/2020/dsa-4656",
         "https://www.debian.org/security/2020/dsa-4655",
         "https://access.redhat.com/errata/RHSA-2020:1496",
         "https://access.redhat.com/errata/RHSA-2020:1495",
         "https://access.redhat.com/errata/RHSA-2020:1489",
         "https://access.redhat.com/errata/RHSA-2020:1488",
         "https://access.redhat.com/errata/RHSA-2020:1429",
         "https://access.redhat.com/errata/RHSA-2020:1420",
         "https://access.redhat.com/errata/RHSA-2020:1406",
         "https://access.redhat.com/errata/RHSA-2020:1404",
         "https://ubuntu.com/security/CVE-2020-6821",
         "https://advisories.mageia.org/CVE-2020-6821.html",
         "https://security.archlinux.org/CVE-2020-6821",
         "https://linux.oracle.com/cve/CVE-2020-6821.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2020-6821",
         ],
         details: "When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.",
         id: "GSD-2020-6821",
         modified: "2023-12-13T01:21:55.129451Z",
         schema_version: "1.4.0",
      },
   },
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         affects: {
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                  {
                     product: {
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                           {
                              product_name: "Thunderbird",
                              version: {
                                 version_data: [
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                                       version_affected: "<",
                                       version_value: "68.7.0",
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                              },
                           },
                           {
                              product_name: "Firefox ESR",
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                                       version_affected: "<",
                                       version_value: "68.7",
                                    },
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                           },
                           {
                              product_name: "Firefox",
                              version: {
                                 version_data: [
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                                       version_affected: "<",
                                       version_value: "75",
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               },
            ],
         },
         problemtype: {
            problemtype_data: [
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                        lang: "eng",
                        value: "Uninitialized memory could be read when using the WebGL copyTexSubImage method",
                     },
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         },
         references: {
            reference_data: [
               {
                  name: "https://www.mozilla.org/security/advisories/mfsa2020-13/",
                  refsource: "MISC",
                  url: "https://www.mozilla.org/security/advisories/mfsa2020-13/",
               },
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                  name: "https://www.mozilla.org/security/advisories/mfsa2020-12/",
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               },
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                  refsource: "MISC",
                  url: "https://www.mozilla.org/security/advisories/mfsa2020-14/",
               },
               {
                  name: "https://bugzilla.mozilla.org/show_bug.cgi?id=1625404",
                  refsource: "MISC",
                  url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1625404",
               },
               {
                  name: "USN-4335-1",
                  refsource: "UBUNTU",
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                        product_data: [
                           {
                              product_name: "Thunderbird",
                              version: {
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                                       version_affected: "<",
                                       version_value: "68.7.0",
                                    },
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                           },
                           {
                              product_name: "Firefox",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_value: "75",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "Firefox ESR",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_value: "68.7",
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               },
            ],
         },
         problemtype: {
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         },
         references: {
            reference_data: [
               {
                  url: "https://www.mozilla.org/security/advisories/mfsa2020-13/",
               },
               {
                  url: "https://www.mozilla.org/security/advisories/mfsa2020-12/",
               },
               {
                  url: "https://www.mozilla.org/security/advisories/mfsa2020-14/",
               },
               {
                  url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1625404",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "75.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*",
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                        versionEndExcluding: "68.7.0",
                        vulnerable: true,
                     },
                     {
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                        cpe_name: [],
                        versionEndExcluding: "68.7.0",
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                     },
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                  operator: "OR",
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         cve: {
            CVE_data_meta: {
               ASSIGNER: "security@mozilla.org",
               ID: "CVE-2020-6821",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
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                     value: "When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
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                     description: [
                        {
                           lang: "en",
                           value: "CWE-908",
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            references: {
               reference_data: [
                  {
                     name: "https://www.mozilla.org/security/advisories/mfsa2020-13/",
                     refsource: "MISC",
                     tags: [
                        "Vendor Advisory",
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                     url: "https://www.mozilla.org/security/advisories/mfsa2020-13/",
                  },
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                     name: "https://www.mozilla.org/security/advisories/mfsa2020-14/",
                     refsource: "MISC",
                     tags: [
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                     refsource: "MISC",
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                  },
                  {
                     name: "https://bugzilla.mozilla.org/show_bug.cgi?id=1625404",
                     refsource: "MISC",
                     tags: [
                        "Issue Tracking",
                        "Permissions Required",
                     ],
                     url: "https://bugzilla.mozilla.org/show_bug.cgi?id=1625404",
                  },
                  {
                     name: "USN-4335-1",
                     refsource: "UBUNTU",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://usn.ubuntu.com/4335-1/",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "NONE",
                  baseScore: 5,
                  confidentialityImpact: "PARTIAL",
                  integrityImpact: "NONE",
                  vectorString: "AV:N/AC:L/Au:N/C:P/I:N/A:N",
                  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: "NONE",
                  baseScore: 7.5,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "NONE",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2021-07-21T11:39Z",
         publishedDate: "2020-04-24T16:15Z",
      },
   },
}


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