{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2016-4480 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2016-4480 is a high-severity vulnerability in Xen Xen, published on 18 May 2016. 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-2016-4480 and fix it if it is affected.\n\nWhat it is: CVE-2016-4480 is a high-severity vulnerability in Xen Xen, published on 18 May 2016. 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-2016-4480 in the wild and no public exploit code.\n\nAffected product: Xen Xen. 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-2016-4480/ (Markdown: https://insights.sbomify.com/CVE-2016-4480/index.md)","id":"CVE-2016-4480","markdown":"https://insights.sbomify.com/CVE-2016-4480/index.md","name":"CVE-2016-4480","record":{"aliases":["DEBIAN-CVE-2016-4480","GHSA-mrv5-xm7c-h532","UBUNTU-CVE-2016-4480"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Xen hypervisor","requires_auth":"none","summary":"Local guest OS users can gain privileges by exploiting improper handling of page table entry bits in the Xen hypervisor.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"vm_server","vendor":"oracle"},{"product":"xen","vendor":"xen"}],"cvss":{"score":8.4,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-264","name":null}],"description":"The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.","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 n/a","id":"CVE-2016-4480","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"xen:xen","products":["xen:xen"],"type":"privilege_escalation","year":"2016"},"n_packages":0,"n_references":5,"next":{"headline":"Information disclosure in n/a","id":"CVE-2016-4482"},"packages":[],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2016-4478"},"products":["n/a"],"published":"2016-05-18","related":[{"cvss_score":6.7,"headline":"Privilege escalation in n/a","id":"CVE-2016-4962","kev_date_added":null,"published":"2016-06-07"},{"cvss_score":5.9,"headline":"Denial of service in LDOMS","id":"CVE-2017-3242","kev_date_added":null,"published":"2017-01-27"},{"cvss_score":4.3,"headline":"Information disclosure in n/a","id":"CVE-2015-0452","kev_date_added":null,"published":"2015-04-16"},{"cvss_score":3.3,"headline":"Missing authorization in LDOMS","id":"CVE-2020-2571","kev_date_added":null,"published":"2020-01-15"}],"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":"2024-08-06","vendors":["n/a"]},"summary":"Local guest OS users can gain privileges by exploiting improper handling of page table entry bits in the Xen hypervisor.","url":"https://insights.sbomify.com/CVE-2016-4480/"}