fkie_cve-2021-42378
Vulnerability from fkie_nvd
Published
2021-11-15 21:15
Modified
2024-11-21 06:27
Severity ?
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function
References
reefs@jfrog.comhttps://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
reefs@jfrog.comhttps://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/Third Party Advisory
reefs@jfrog.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
reefs@jfrog.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
reefs@jfrog.comhttps://security.netapp.com/advisory/ntap-20211223-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog
af854a3a-2127-422b-91ae-364da2661108https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211223-0002/Third Party Advisory
Impacted products
Vendor Product Version
busybox busybox *
fedoraproject fedora 33
fedoraproject fedora 34


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "6A24DBA4-B67F-4947-8FF0-8C88257814EE",
                     versionEndIncluding: "1.33.1",
                     versionStartIncluding: "1.16.0",
                     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",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the getvar_i function",
      },
      {
         lang: "es",
         value: "Un uso de memoria previamente liberada en el applet awk de Busybox conduce a una denegación de servicio y posiblemente a una ejecución de código cuando es procesado un patrón awk diseñado en la función getvar_i",
      },
   ],
   id: "CVE-2021-42378",
   lastModified: "2024-11-21T06:27:41.790",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "SINGLE",
               availabilityImpact: "PARTIAL",
               baseScore: 6.5,
               confidentialityImpact: "PARTIAL",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:L/Au:S/C:P/I:P/A:P",
               version: "2.0",
            },
            exploitabilityScore: 8,
            impactScore: 6.4,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 7.2,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "HIGH",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 1.2,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2021-11-15T21:15:07.753",
   references: [
      {
         source: "reefs@jfrog.com",
         url: "https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog",
      },
      {
         source: "reefs@jfrog.com",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/",
      },
      {
         source: "reefs@jfrog.com",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/",
      },
      {
         source: "reefs@jfrog.com",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/",
      },
      {
         source: "reefs@jfrog.com",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://security.netapp.com/advisory/ntap-20211223-0002/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://claroty.com/team82/research/unboxing-busybox-14-vulnerabilities-uncovered-by-claroty-jfrog",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://jfrog.com/blog/unboxing-busybox-14-new-vulnerabilities-uncovered-by-claroty-and-jfrog/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6T2TURBYYJGBMQTTN2DSOAIQGP7WCPGV/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UQXGOGWBIYWOIVXJVRKHZR34UMEHQBXS/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://security.netapp.com/advisory/ntap-20211223-0002/",
      },
   ],
   sourceIdentifier: "reefs@jfrog.com",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "reefs@jfrog.com",
         type: "Secondary",
      },
      {
         description: [
            {
               lang: "en",
               value: "CWE-416",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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