{"answers":{"affected":"1 open source package ship an affected version, including Kernel.","exploited":"There is no known exploitation of GSD-2021-1000934 in the wild and no public exploit code.","fix":"No fix has been published for GSD-2021-1000934 yet. Limit exposure of the affected software until one is available.","what":"GSD-2021-1000934 is a vulnerability in Kernel, published on 30 Jun 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-2021-1000934 and fix it if it is affected.\n\nWhat it is: GSD-2021-1000934 is a vulnerability in Kernel, published on 30 Jun 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-2021-1000934 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-2021-1000934/ (Markdown: https://insights.sbomify.com/GSD-2021-1000934/index.md)","id":"GSD-2021-1000934","markdown":"https://insights.sbomify.com/GSD-2021-1000934/index.md","name":"GSD-2021-1000934","record":{"aliases":[],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel bridge","requires_auth":"none","summary":"A null pointer dereference in the Linux kernel bridge VLAN tunnel code can cause a system crash, requiring specific VLAN tunnel configurations.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"net: bridge: fix vlan tunnel dst null pointer dereference\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 v5.4.128 by commit a2241e62f6b4a774d8a92048fdf59c45f6c2fe5c, it was introduced in version v4.11 by commit 11538d039ac6efcf4f1a6c536e1b87cd3668a9fd. 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":"net: bridge: fix vlan tunnel dst null pointer dereference","id":"GSD-2021-1000934","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"Linux","product":null,"products":[],"type":"null_dereference","year":"2021"},"n_packages":1,"n_references":null,"packages":[{"ecosystem":"Linux","fixed":[],"introduced":[],"last_affected":[],"package":"Kernel","purl":null,"source":"GSD-2021-1000934"}],"products":null,"published":"2021-06-30","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 null pointer dereference in the Linux kernel bridge VLAN tunnel code can cause a system crash, requiring specific VLAN tunnel configurations.","url":"https://insights.sbomify.com/GSD-2021-1000934/"}