{"answers":{"affected":"1 open source package ship an affected version, including Kernel.","exploited":"There is no known exploitation of GSD-2021-1000021 in the wild and no public exploit code.","fix":"No fix has been published for GSD-2021-1000021 yet. Limit exposure of the affected software until one is available.","what":"GSD-2021-1000021 is a vulnerability in Kernel, published on 31 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 GSD-2021-1000021 and fix it if it is affected.\n\nWhat it is: GSD-2021-1000021 is a vulnerability in Kernel, published on 31 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 GSD-2021-1000021 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Kernel (Linux): affected all versions; no fix listed\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/GSD-2021-1000021/ (Markdown: https://insights.sbomify.com/GSD-2021-1000021/index.md)","id":"GSD-2021-1000021","markdown":"https://insights.sbomify.com/GSD-2021-1000021/index.md","name":"GSD-2021-1000021","record":{"aliases":[],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A flaw in the Linux kernel BPF subsystem allows local attackers to potentially escalate privileges due to incorrect permission checks in mixed signed bounds arithmetic.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"bpf: Use correct permission flag for mixed signed bounds arithmetic\n\nThis is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven.\nThis ID is fixed in Linux Kernel version v5.10.32 by commit 4f3ff11204eac0ee23acf64deecb3bad7b0db0c6, it was introduced in version v5.8 by commit 2c78ee898d8f10ae6fb2fa23a3fbaec96b1b7366. For more details please see the references link.","ecosystems":["Linux"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":false,"headline":"bpf: Use correct permission flag for mixed signed bounds arithmetic","id":"GSD-2021-1000021","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"Linux","product":null,"products":[],"type":"privilege_escalation","year":"2021"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"Linux","fixed":[],"introduced":[],"last_affected":[],"package":"Kernel","purl":null,"source":"GSD-2021-1000021"}],"products":null,"published":"2021-05-31","related":[],"sources":[{"class":"open","licence":"CC0 1.0","name":"Global Security Database","prefix":"GSD"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"A flaw in the Linux kernel BPF subsystem allows local attackers to potentially escalate privileges due to incorrect permission checks in mixed signed bounds arithmetic.","url":"https://insights.sbomify.com/GSD-2021-1000021/"}