{"api_version":"1","generated_at":"2026-04-23T03:26:33+00:00","cve":"CVE-2021-20284","urls":{"html":"https://cve.report/CVE-2021-20284","api":"https://cve.report/api/cve/CVE-2021-20284.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-20284","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-20284"},"summary":{"title":"CVE-2021-20284","description":"A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability.","state":"PUBLIC","assigner":"secalert@redhat.com","published_at":"2021-03-26 17:15:00","updated_at":"2023-02-12 22:15:00"},"problem_types":["CWE-119"],"metrics":[],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2021-20284","name":"https://access.redhat.com/security/cve/CVE-2021-20284","refsource":"MISC","tags":[],"title":"Red Hat Customer Portal - Access to 24x7 support and knowledge","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/202208-30","name":"GLSA-202208-30","refsource":"GENTOO","tags":[],"title":"GNU Binutils: Multiple Vulnerabilities (GLSA 202208-30) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1937784","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1937784","refsource":"MISC","tags":[],"title":"1937784 – (CVE-2021-20284) CVE-2021-20284 binutils: Heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=26931","name":"https://sourceware.org/bugzilla/show_bug.cgi?id=26931","refsource":"MISC","tags":[],"title":"26931 – [nm] crash with ASAN in display_rel_file","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://access.redhat.com/errata/RHSA-2021:4364","name":"https://access.redhat.com/errata/RHSA-2021:4364","refsource":"MISC","tags":[],"title":"Red Hat Customer Portal - Access to 24x7 support and knowledge","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.netapp.com/advisory/ntap-20210521-0010/","name":"https://security.netapp.com/advisory/ntap-20210521-0010/","refsource":"CONFIRM","tags":[],"title":"CVE-2021-20284 GNU Binutils Vulnerability in NetApp Products | NetApp Product Security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-20284","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20284","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2021","cve_id":"20284","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"gnu","cpe5":"binutils","cpe6":"2.35.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"20284","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"netapp","cpe5":"cloud_backup","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"20284","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"netapp","cpe5":"ontap_select_deploy_administration_utility","cpe6":"-","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-20284","qid":"159495","title":"Oracle Enterprise Linux Security Update for binutils (ELSA-2021-4364)"},{"cve":"CVE-2021-20284","qid":"182009","title":"Debian Security Update for binutils (CVE-2021-20284)"},{"cve":"CVE-2021-20284","qid":"239817","title":"Red Hat Update for binutils (RHSA-2021:4364)"},{"cve":"CVE-2021-20284","qid":"710599","title":"Gentoo Linux GNU Binutils Multiple Vulnerabilities (GLSA 202208-30)"},{"cve":"CVE-2021-20284","qid":"751313","title":"SUSE Enterprise Linux Security Update for binutils (SUSE-SU-2021:3593-1)"},{"cve":"CVE-2021-20284","qid":"751321","title":"SUSE Enterprise Linux Security Update for binutils (SUSE-SU-2021:3616-1)"},{"cve":"CVE-2021-20284","qid":"751331","title":"OpenSUSE Security Update for binutils (openSUSE-SU-2021:3616-1)"},{"cve":"CVE-2021-20284","qid":"751350","title":"OpenSUSE Security Update for binutils (openSUSE-SU-2021:1475-1)"},{"cve":"CVE-2021-20284","qid":"751916","title":"SUSE Enterprise Linux Security Update for binutils (SUSE-SU-2022:0934-1)"},{"cve":"CVE-2021-20284","qid":"940080","title":"AlmaLinux Security Update for binutils (ALSA-2021:4364)"},{"cve":"CVE-2021-20284","qid":"960767","title":"Rocky Linux Security Update for binutils (RLSA-2021:4364)"}]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2021-20284","ASSIGNER":"secalert@redhat.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-119","cweId":"CWE-119"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"n/a","product":{"product_data":[{"product_name":"binutils","version":{"version_data":[{"version_affected":"=","version_value":"Binutils 2.35.1"}]}}]}}]}},"references":{"reference_data":[{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=26931","refsource":"MISC","name":"https://sourceware.org/bugzilla/show_bug.cgi?id=26931"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1937784","refsource":"MISC","name":"https://bugzilla.redhat.com/show_bug.cgi?id=1937784"},{"url":"https://security.gentoo.org/glsa/202208-30","refsource":"MISC","name":"https://security.gentoo.org/glsa/202208-30"},{"url":"https://security.netapp.com/advisory/ntap-20210521-0010/","refsource":"MISC","name":"https://security.netapp.com/advisory/ntap-20210521-0010/"}]}},"nvd":{"publishedDate":"2021-03-26 17:15:00","lastModifiedDate":"2023-02-12 22:15:00","problem_types":["CWE-119"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":1.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:gnu:binutils:2.35.1:*:*:*:*:*:*:*","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"20284","Ordinal":"194325","Title":"CVE-2021-20284","CVE":"CVE-2021-20284","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"20284","Ordinal":"1","NoteData":"A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"20284","Ordinal":"2","NoteData":"2021-03-26","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"20284","Ordinal":"3","NoteData":"2021-05-21","Type":"Other","Title":"Modified"}]}}}