fkie_cve-2021-3466
Vulnerability from fkie_nvd
Published
2021-03-25 19:15
Modified
2024-11-21 06:21
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1939127Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4334XJNDJPYQNFE6S3S2KUJJ7TMHYCWL/
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/75HDMREKITMGPGE62NP7KE62ZJVLETXN/
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5NEPVGP3L2CZHLZ4UB44PEILHKPDBOG/
secalert@redhat.comhttps://security.gentoo.org/glsa/202311-08
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1939127Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4334XJNDJPYQNFE6S3S2KUJJ7TMHYCWL/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/75HDMREKITMGPGE62NP7KE62ZJVLETXN/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K5NEPVGP3L2CZHLZ4UB44PEILHKPDBOG/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202311-08
Impacted products
Vendor Product Version
gnu libmicrohttpd 0.9.70
redhat enterprise_linux 6.0
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
fedoraproject fedora 32
fedoraproject fedora 33
fedoraproject fedora 34


To clipboard 

{
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   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable.",
      },
      {
         lang: "es",
         value: "Se ha encontrado un fallo en libmicrohttpd. Una comprobación de límites ausente en la función post_process_urlencoded conduce a un desbordamiento del búfer, lo que permite a un atacante remoto escribir datos arbitrarios en una aplicación que utilice libmicrohttpd. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos, así como la disponibilidad del sistema. Sólo la versión 0.9.70 es vulnerable",
      },
   ],
   id: "CVE-2021-3466",
   lastModified: "2024-11-21T06:21:36.677",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "HIGH",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "COMPLETE",
               baseScore: 10,
               confidentialityImpact: "COMPLETE",
               integrityImpact: "COMPLETE",
               vectorString: "AV:N/AC:L/Au:N/C:C/I:C/A:C",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 10,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
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               baseScore: 9.8,
               baseSeverity: "CRITICAL",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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            },
            exploitabilityScore: 3.9,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
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   published: "2021-03-25T19:15:15.297",
   references: [
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         tags: [
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   sourceIdentifier: "secalert@redhat.com",
   vulnStatus: "Modified",
   weaknesses: [
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               lang: "en",
               value: "CWE-120",
            },
         ],
         source: "secalert@redhat.com",
         type: "Primary",
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   ],
}


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