{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-34326 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-34326 is a high-severity vulnerability in Xen Xen, published on 5 Jan 2024. 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-2023-34326 and fix it if it is affected.\n\nWhat it is: CVE-2023-34326 is a high-severity vulnerability in Xen Xen, published on 5 Jan 2024. 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-2023-34326 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-2023-34326/ (Markdown: https://insights.sbomify.com/CVE-2023-34326/index.md)","id":"CVE-2023-34326","markdown":"https://insights.sbomify.com/CVE-2023-34326/index.md","name":"CVE-2023-34326","record":{"aliases":["ALPINE-CVE-2023-34326","DEBIAN-CVE-2023-34326","GHSA-mjvw-frxx-6hm5","UBUNTU-CVE-2023-34326"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Xen hypervisor","requires_auth":"low_privilege","summary":"Missing IOMMU TLB flushing in Xen allows devices to access unauthorized memory regions via stale DMA mappings, leading to information disclosure.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[{"product":"xen","vendor":"xen"}],"cvss":{"score":7.8,"severity":"high","source":"cisa-adp","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-672","name":"Operation on a Resource after Expiration or Release"}],"description":"The caching invalidation guidelines from the AMD-Vi specification (48882—Rev\n3.07-PUB—Oct 2022) is incorrect on some hardware, as devices will malfunction\n(see stale DMA mappings) if some fields of the DTE are updated but the IOMMU\nTLB is not flushed.\n\nSuch stale DMA mappings can point to memory ranges not owned by the guest, thus\nallowing access to unindented memory regions.","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":"x86/AMD: missing IOMMU TLB flushing","id":"CVE-2023-34326","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"xen:xen","products":["xen:xen"],"type":"information_disclosure","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"x86/AMD: Debug Mask handling","id":"CVE-2023-34327"},"packages":[],"prev":{"headline":"Multiple vulnerabilities in libfsimage disk handling","id":"CVE-2023-34325"},"products":["Xen"],"published":"2024-01-05","related":[{"cvss_score":10,"headline":"Privilege escalation in n/a","id":"CVE-2017-10912","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10918","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10920","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2017-10921","kev_date_added":null,"published":"2017-07-05"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-27466","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-58142","kev_date_added":null,"published":"2025-09-11"},{"cvss_score":9.8,"headline":"Mutiple vulnerabilities in the Viridian interface","id":"CVE-2025-58143","kev_date_added":null,"published":"2025-09-11"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["Xen"]},"summary":"Missing IOMMU TLB flushing in Xen allows devices to access unauthorized memory regions via stale DMA mappings, leading to information disclosure.","url":"https://insights.sbomify.com/CVE-2023-34326/"}