{
   containers: {
      adp: [
         {
            providerMetadata: {
               dateUpdated: "2024-08-04T03:38:50.226Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
               shortName: "CVE",
            },
            references: [
               {
                  tags: [
                     "x_refsource_MISC",
                     "x_transferred",
                  ],
                  url: "https://www.tightvnc.com/whatsnew.php",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               product: "TightVNC Viewer",
               vendor: "GlavSoft LLC",
               versions: [
                  {
                     lessThanOrEqual: "2.8.59",
                     status: "affected",
                     version: "2.8.59",
                     versionType: "custom",
                  },
               ],
            },
         ],
         credits: [
            {
               lang: "en",
               value: "Eugene Lim from Government Technology Agency of Singapore",
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.",
            },
         ],
         problemTypes: [
            {
               descriptions: [
                  {
                     cweId: "CWE-120",
                     description: "CWE-120 Buffer Overflow",
                     lang: "en",
                     type: "CWE",
                  },
               ],
            },
         ],
         providerMetadata: {
            dateUpdated: "2021-11-23T21:37:07",
            orgId: "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
            shortName: "GovTech CSG",
         },
         references: [
            {
               tags: [
                  "x_refsource_MISC",
               ],
               url: "https://www.tightvnc.com/whatsnew.php",
            },
         ],
         source: {
            discovery: "EXTERNAL",
         },
         title: "Buffer Overflow in tvnviewer.exe via Crafted Packet in TightVNC Viewer 2.8.59",
         x_generator: {
            engine: "Vulnogram 0.0.9",
         },
         x_legacyV4Record: {
            CVE_data_meta: {
               ASSIGNER: "cve_disclosure@tech.gov.sg",
               ID: "CVE-2021-42785",
               STATE: "PUBLIC",
               TITLE: "Buffer Overflow in tvnviewer.exe via Crafted Packet in TightVNC Viewer 2.8.59",
            },
            affects: {
               vendor: {
                  vendor_data: [
                     {
                        product: {
                           product_data: [
                              {
                                 product_name: "TightVNC Viewer",
                                 version: {
                                    version_data: [
                                       {
                                          version_affected: "<=",
                                          version_name: "2.8.59",
                                          version_value: "2.8.59",
                                       },
                                    ],
                                 },
                              },
                           ],
                        },
                        vendor_name: "GlavSoft LLC",
                     },
                  ],
               },
            },
            credit: [
               {
                  lang: "eng",
                  value: "Eugene Lim from Government Technology Agency of Singapore",
               },
            ],
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "eng",
                     value: "Buffer Overflow vulnerability in tvnviewer.exe of TightVNC Viewer allows a remote attacker to execute arbitrary instructions via a crafted FramebufferUpdate packet from a VNC server.",
                  },
               ],
            },
            generator: {
               engine: "Vulnogram 0.0.9",
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "eng",
                           value: "CWE-120 Buffer Overflow",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://www.tightvnc.com/whatsnew.php",
                     refsource: "MISC",
                     url: "https://www.tightvnc.com/whatsnew.php",
                  },
               ],
            },
            source: {
               discovery: "EXTERNAL",
            },
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "1a37b84a-8e51-4525-b3d6-87e2fae01dbd",
      assignerShortName: "GovTech CSG",
      cveId: "CVE-2021-42785",
      datePublished: "2021-11-23T21:37:07",
      dateReserved: "2021-10-21T00:00:00",
      dateUpdated: "2024-08-04T03:38:50.226Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}