{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-46842 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-46842 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 16 May 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-2023-46842 and fix it if it is affected.\n\nWhat it is: CVE-2023-46842 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 16 May 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-2023-46842 in the wild and no public exploit code.\n\nAffected product: Fedoraproject Fedora. 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-2023-46842/ (Markdown: https://insights.sbomify.com/CVE-2023-46842/index.md)","id":"CVE-2023-46842","markdown":"https://insights.sbomify.com/CVE-2023-46842/index.md","name":"CVE-2023-46842","record":{"aliases":["ALPINE-CVE-2023-46842","DEBIAN-CVE-2023-46842","GHSA-hcr5-hp8w-36q9","UBUNTU-CVE-2023-46842"],"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 malicious HVM guest can crash the Xen hypervisor by triggering a consistency check failure during hypercall continuation processing.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"xen","vendor":"xen"}],"cvss":{"score":6.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-843","name":"Access of Resource Using Incompatible Type"}],"description":"Unlike 32-bit PV guests, HVM guests may switch freely between 64-bit and\nother modes.  This in particular means that they may set registers used\nto pass 32-bit-mode hypercall arguments to values outside of the range\n32-bit code would be able to set them to.\n\nWhen processing of hypercalls takes a considerable amount of time,\nthe hypervisor may choose to invoke a hypercall continuation.  Doing so\ninvolves putting (perhaps updated) hypercall arguments in respective\nregisters.  For guests not running in 64-bit mode this further involves\na certain amount of translation of the values.\n\nUnfortunately internal sanity checking of these translated values\nassumes high halves of registers to always be clear when invoking a\nhypercall.  When this is found not to be the case, it triggers a\nconsistency check in the hypervisor and causes a crash.","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 HVM hypercalls may trigger Xen bug check","id":"CVE-2023-46842","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","xen:xen"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Code injection in EC-CUBE 3 series","id":"CVE-2023-46845"},"packages":[],"prev":{"headline":"x86: shadow stack vs exceptions from emulation stubs","id":"CVE-2023-46841"},"products":["Xen"],"published":"2024-05-16","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"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":"partial"},"state":"PUBLISHED","updated":"2025-11-04","vendors":["Xen"]},"summary":"A malicious HVM guest can crash the Xen hypervisor by triggering a consistency check failure during hypercall continuation processing.","url":"https://insights.sbomify.com/CVE-2023-46842/"}