gsd-2021-3826
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.
Aliases
Aliases
CVE-2021-3826


To clipboard 

{
   GSD: {
      alias: "CVE-2021-3826",
      description: "Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.",
      id: "GSD-2021-3826",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-3826.html",
         "https://advisories.mageia.org/CVE-2021-3826.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-3826",
         ],
         details: "Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.",
         id: "GSD-2021-3826",
         modified: "2023-12-13T01:23:34.131045Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secalert@redhat.com",
            ID: "CVE-2021-3826",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "gcc",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "=",
                                       version_value: "gcc 11.2.0",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        cweId: "CWE-119",
                        lang: "eng",
                        value: "CWE-119",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987",
                  refsource: "MISC",
                  url: "https://gcc.gnu.org/pipermail/gcc-patches/2021-September/579987",
               },
               {
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               },
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                  refsource: "MISC",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4MYLS3VR4OPL5ECRWOR4ZHMGXUSCJFZY/",
               },
               {
                  name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6AKZ2DTS3ATVN5PANNVLKLE5OP4OF25Q/",
                  refsource: "MISC",
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               },
               {
                  name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/",
                  refsource: "MISC",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7MTEHT3G6YKJ7F7MSGWYSI4UM3XBAYXZ/",
               },
               {
                  name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/",
                  refsource: "MISC",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AXFC74WRZ2Q7F2TSUKPYNIL7ZPBWYI6L/",
               },
               {
                  name: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/",
                  refsource: "MISC",
                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         cve: {
            configurations: [
               {
                  nodes: [
                     {
                        cpeMatch: [
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                              criteria: "cpe:2.3:a:gnu:gcc:11.2:*:*:*:*:*:*:*",
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                              vulnerable: true,
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                        negate: false,
                        operator: "OR",
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            descriptions: [
               {
                  lang: "en",
                  value: "Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.",
               },
               {
                  lang: "es",
                  value: "Un desbordamiento del búfer de la pila en la función dlang_lname en el archivo d-demangle.c en libiberty permite a atacantes causar potencialmente una denegación de servicio (fallo de segmentación y caída) por medio de un símbolo mangled diseñado",
               },
            ],
            id: "CVE-2021-3826",
            lastModified: "2024-01-22T15:01:35.150",
            metrics: {
               cvssMetricV31: [
                  {
                     cvssData: {
                        attackComplexity: "LOW",
                        attackVector: "NETWORK",
                        availabilityImpact: "HIGH",
                        baseScore: 6.5,
                        baseSeverity: "MEDIUM",
                        confidentialityImpact: "NONE",
                        integrityImpact: "NONE",
                        privilegesRequired: "NONE",
                        scope: "UNCHANGED",
                        userInteraction: "REQUIRED",
                        vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                        version: "3.1",
                     },
                     exploitabilityScore: 2.8,
                     impactScore: 3.6,
                     source: "nvd@nist.gov",
                     type: "Primary",
                  },
               ],
            },
            published: "2022-09-01T21:15:08.843",
            references: [
               {
                  source: "secalert@redhat.com",
                  tags: [
                     "Broken Link",
                  ],
                  url: "https://gcc.gnu.org/git/?p=gcc.git%3Ba=commit%3Bh=5481040197402be6dfee265bd2ff5a4c88e30505",
               },
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                     "Patch",
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               },
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               },
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                  url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H424YXGW7OKXS2NCAP35OP6Y4P4AW6VG/",
               },
            ],
            sourceIdentifier: "secalert@redhat.com",
            vulnStatus: "Analyzed",
            weaknesses: [
               {
                  description: [
                     {
                        lang: "en",
                        value: "CWE-119",
                     },
                  ],
                  source: "secalert@redhat.com",
                  type: "Primary",
               },
               {
                  description: [
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                        lang: "en",
                        value: "CWE-787",
                     },
                  ],
                  source: "nvd@nist.gov",
                  type: "Secondary",
               },
            ],
         },
      },
   },
}


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