{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-34320 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-34320 is a medium-severity denial of service vulnerability in Xen Xen, published on 8 Dec 2023. 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-2023-34320 and fix it if it is affected.\n\nWhat it is: CVE-2023-34320 is a medium-severity denial of service vulnerability in Xen Xen, published on 8 Dec 2023. 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-2023-34320 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-2023-34320/ (Markdown: https://insights.sbomify.com/CVE-2023-34320/index.md)","id":"CVE-2023-34320","markdown":"https://insights.sbomify.com/CVE-2023-34320/index.md","name":"CVE-2023-34320","record":{"aliases":["ALPINE-CVE-2023-34320","DEBIAN-CVE-2023-34320","GHSA-75hw-9685-7hff","UBUNTU-CVE-2023-34320"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Xen hypervisor","requires_auth":"low_privilege","summary":"A guest VM can trigger a CPU deadlock on Cortex-A77 cores via specific memory operations, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[{"product":"cortex-a77_firmware","vendor":"arm"},{"product":"xen","vendor":"xen"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-667","name":"Improper Locking"}],"description":"Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412\nwhere software, under certain circumstances, could deadlock a core\ndue to the execution of either a load to device or non-cacheable memory,\nand either a store exclusive or register read of the Physical\nAddress Register (PAR_EL1) in close proximity.","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":"arm: Guests can trigger a deadlock on Cortex-A77","id":"CVE-2023-34320","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"xen:xen","products":["xen:xen"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"arm32: The cache may not be properly cleaned/invalidated","id":"CVE-2023-34321"},"packages":[],"prev":{"headline":"Linux: buffer overrun in netback due to unusual packet","id":"CVE-2023-34319"},"products":["Xen"],"published":"2023-12-08","related":[],"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":"2025-11-04","vendors":["Xen"]},"summary":"A guest VM can trigger a CPU deadlock on Cortex-A77 cores via specific memory operations, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2023-34320/"}