{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2021-4197 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-4197 is a high-severity vulnerability in Debian Debian Linux, published on 23 Mar 2022. 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-2021-4197 and fix it if it is affected.\n\nWhat it is: CVE-2021-4197 is a high-severity vulnerability in Debian Debian Linux, published on 23 Mar 2022. 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-2021-4197 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2021-4197/ (Markdown: https://insights.sbomify.com/CVE-2021-4197/index.md)","id":"CVE-2021-4197","markdown":"https://insights.sbomify.com/CVE-2021-4197/index.md","name":"CVE-2021-4197","record":{"aliases":["AZL-9141","DEBIAN-CVE-2021-4197","UBUNTU-CVE-2021-4197"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation","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 exploit a flaw in the Linux kernel's cgroups subsystem to escalate privileges or crash the system.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"brocade_fabric_operating_system_firmware","vendor":"broadcom"},{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"},{"product":"h300s_firmware","vendor":"netapp"},{"product":"h410c_firmware","vendor":"netapp"},{"product":"h410s_firmware","vendor":"netapp"},{"product":"h500s_firmware","vendor":"netapp"},{"product":"h700s_firmware","vendor":"netapp"},{"product":"communications_cloud_native_core_binding_support_function","vendor":"oracle"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.","ecosystems":[],"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":"Privilege escalation in kernel","id":"CVE-2021-4197","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500s_firmware","netapp:h700s_firmware","oracle:communications_cloud_native_core_binding_support_function"],"type":"privilege_escalation","year":"2021"},"n_packages":0,"n_references":6,"next":{"headline":"messaging_ipc.dll NULL Pointer Dereference in multiple Bitdefender products (VA-10016)","id":"CVE-2021-4198"},"packages":[],"prev":{"headline":"XSS in Firmanet Software and Technology Customer Relation Manager","id":"CVE-2021-4195"},"products":["kernel"],"published":"2022-03-23","related":[{"cvss_score":8.8,"headline":"Path traversal in https://github.com/curl/curl","id":"CVE-2023-27534","kev_date_added":null,"published":"2023-03-30"},{"cvss_score":7.7,"headline":"Auth bypass in https://github.com/curl/curl","id":"CVE-2023-27538","kev_date_added":null,"published":"2023-03-30"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2021-27218","kev_date_added":null,"published":"2021-02-15"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2021-27219","kev_date_added":null,"published":"2021-02-15"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2019-19044","kev_date_added":null,"published":"2019-11-18"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2019-19052","kev_date_added":null,"published":"2019-11-18"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2024-08-03","vendors":["n/a"]},"summary":"A local attacker can exploit a flaw in the Linux kernel's cgroups subsystem to escalate privileges or crash the system.","url":"https://insights.sbomify.com/CVE-2021-4197/"}