{"answers":{"affected":"It affects 19 products.","exploited":"There is no known exploitation of CVE-2021-3501 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-3501 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 5 May 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-3501 and fix it if it is affected.\n\nWhat it is: CVE-2021-3501 is a high-severity memory corruption vulnerability in Fedoraproject Fedora, published on 5 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-3501 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-3501/ (Markdown: https://insights.sbomify.com/CVE-2021-3501/index.md)","id":"CVE-2021-3501","markdown":"https://insights.sbomify.com/CVE-2021-3501/index.md","name":"CVE-2021-3501","record":{"aliases":["AZL-6569","DEBIAN-CVE-2021-3501","GHSA-hvwc-6fg8-r6p5","RHSA-2021:2165","UBUNTU-CVE-2021-3501"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_modify","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A local attacker can trigger an out-of-bounds write in the Linux kernel KVM API, compromising data integrity and system availability.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"linux_kernel","vendor":"linux"},{"product":"cloud_backup","vendor":"netapp"},{"product":"h300e_firmware","vendor":"netapp"},{"product":"h300s_firmware","vendor":"netapp"},{"product":"h410c_firmware","vendor":"netapp"},{"product":"h410s_firmware","vendor":"netapp"},{"product":"h500e_firmware","vendor":"netapp"},{"product":"h500s_firmware","vendor":"netapp"},{"product":"h700e_firmware","vendor":"netapp"},{"product":"h700s_firmware","vendor":"netapp"},{"product":"solidfire_baseboard_management_controller_firmware","vendor":"netapp"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_linux_for_real_time","vendor":"redhat"},{"product":"enterprise_linux_for_real_time_for_nfv","vendor":"redhat"},{"product":"enterprise_linux_for_real_time_for_nfv_tus","vendor":"redhat"},{"product":"enterprise_linux_for_real_time_tus","vendor":"redhat"},{"product":"virtualization","vendor":"redhat"},{"product":"virtualization_host","vendor":"redhat"}],"cvss":{"score":7.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.","ecosystems":["Red Hat:enterprise_linux:8::baseos"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Memory corruption in kernel","id":"CVE-2021-3501","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","linux:linux_kernel","netapp:cloud_backup","netapp:h300e_firmware","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500e_firmware","netapp:h500s_firmware","netapp:h700e_firmware","netapp:h700s_firmware","netapp:solidfire_baseboard_management_controller_firmware","redhat:enterprise_linux","redhat:virtualization","redhat:virtualization_host"],"type":"memory_corruption","year":"2021"},"n_packages":3,"n_references":3,"next":{"headline":"Denial of service in avahi","id":"CVE-2021-3502"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1-1.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305","source":"RHSA-2021:2165"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1-1.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305-debuginfo","source":"RHSA-2021:2165"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1-1.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305-debugsource","source":"RHSA-2021:2165"}],"prev":{"headline":"Memory corruption in djvulibre","id":"CVE-2021-3500"},"products":["kernel"],"published":"2021-05-05","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A local attacker can trigger an out-of-bounds write in the Linux kernel KVM API, compromising data integrity and system availability.","url":"https://insights.sbomify.com/CVE-2021-3501/"}