fkie_cve-2021-21779
Vulnerability from fkie_nvd
Published
2021-07-08 12:15
Modified
2024-11-21 05:48
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.
References
talos-cna@cisco.comhttp://www.openwall.com/lists/oss-security/2021/07/23/1Mailing List
talos-cna@cisco.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/
talos-cna@cisco.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/
talos-cna@cisco.comhttps://talosintelligence.com/vulnerability_reports/TALOS-2021-1238Exploit, Third Party Advisory
talos-cna@cisco.comhttps://www.debian.org/security/2021/dsa-4945Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/07/23/1Mailing List
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/
af854a3a-2127-422b-91ae-364da2661108https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4945Third Party Advisory
Impacted products
Vendor Product Version
webkitgtk webkitgtk 2.30.4
fedoraproject fedora 33
fedoraproject fedora 34
debian debian_linux 10.0


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:webkitgtk:webkitgtk:2.30.4:*:*:*:*:*:*:*",
                     matchCriteriaId: "91F61956-847A-4D9F-9EE1-6D6205F51120",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                     matchCriteriaId: "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                     matchCriteriaId: "A930E247-0B43-43CB-98FF-6CE7B8189835",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.",
      },
      {
         lang: "es",
         value: "Se presenta una vulnerabilidad de uso de memoria previamente liberada en la forma en que el GraphicsContext de Webkit maneja determinados eventos en WebKitGTK versión 2.30.4. Una página web especialmente diseñada puede conllevar a un potencial filtrado de información y una mayor corrupción de memoria. Una víctima debe ser engañada para visitar una página web maliciosa para desencadenar esta vulnerabilidad",
      },
   ],
   id: "CVE-2021-21779",
   lastModified: "2024-11-21T05:48:57.273",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "MEDIUM",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "PARTIAL",
               baseScore: 6.8,
               confidentialityImpact: "PARTIAL",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:M/Au:N/C:P/I:P/A:P",
               version: "2.0",
            },
            exploitabilityScore: 8.6,
            impactScore: 6.4,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: true,
         },
      ],
      cvssMetricV30: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "LOW",
               baseScore: 6.8,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "HIGH",
               integrityImpact: "LOW",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "REQUIRED",
               vectorString: "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L",
               version: "3.0",
            },
            exploitabilityScore: 2.1,
            impactScore: 4.7,
            source: "talos-cna@cisco.com",
            type: "Secondary",
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 8.8,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "REQUIRED",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 2.8,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2021-07-08T12:15:09.903",
   references: [
      {
         source: "talos-cna@cisco.com",
         tags: [
            "Mailing List",
         ],
         url: "http://www.openwall.com/lists/oss-security/2021/07/23/1",
      },
      {
         source: "talos-cna@cisco.com",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/",
      },
      {
         source: "talos-cna@cisco.com",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/",
      },
      {
         source: "talos-cna@cisco.com",
         tags: [
            "Exploit",
            "Third Party Advisory",
         ],
         url: "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238",
      },
      {
         source: "talos-cna@cisco.com",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://www.debian.org/security/2021/dsa-4945",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Mailing List",
         ],
         url: "http://www.openwall.com/lists/oss-security/2021/07/23/1",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KYMMBQN4PRVDLMIJT2LY2BWHLYBD57P3/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V4QORERLPDN3UNNJFJSOMHZZCU2G75Q6/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Exploit",
            "Third Party Advisory",
         ],
         url: "https://talosintelligence.com/vulnerability_reports/TALOS-2021-1238",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://www.debian.org/security/2021/dsa-4945",
      },
   ],
   sourceIdentifier: "talos-cna@cisco.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "talos-cna@cisco.com",
         type: "Secondary",
      },
      {
         description: [
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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