{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-46839 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-46839 is a medium-severity missing authorization vulnerability in Fedoraproject Fedora, published on 20 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-46839 and fix it if it is affected.\n\nWhat it is: CVE-2023-46839 is a medium-severity missing authorization vulnerability in Fedoraproject Fedora, published on 20 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-46839 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-2023-46839/ (Markdown: https://insights.sbomify.com/CVE-2023-46839/index.md)","id":"CVE-2023-46839","markdown":"https://insights.sbomify.com/CVE-2023-46839/index.md","name":"CVE-2023-46839","record":{"aliases":["ALPINE-CVE-2023-46839","DEBIAN-CVE-2023-46839","GHSA-8f65-fxmq-vvpx","SUSE-SU-2024:0264-1","SUSE-SU-2024:0265-1","SUSE-SU-2024:0268-1","SUSE-SU-2024:0269-1","SUSE-SU-2024:0270-1","UBUNTU-CVE-2023-46839"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Xen hypervisor","requires_auth":"none","summary":"Attackers can exploit phantom function misconfiguration to access resources in a different domain, leading to privilege escalation or data leakage.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"xen","vendor":"xen"}],"cvss":{"score":5.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[],"description":"PCI devices can make use of a functionality called phantom functions,\nthat when enabled allows the device to generate requests using the IDs\nof functions that are otherwise unpopulated.  This allows a device to\nextend the number of outstanding requests.\n\nSuch phantom functions need an IOMMU context setup, but failure to\nsetup the context is not fatal when the device is assigned.  Not\nfailing device assignment when such failure happens can lead to the\nprimary device being assigned to a guest, while some of the phantom\nfunctions are assigned to a different domain.","ecosystems":["SUSE:Enterprise Storage 7.1","SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise Micro 5.1","SUSE:Linux Enterprise Micro 5.2","SUSE:Linux Enterprise Micro 5.3","SUSE:Linux Enterprise Micro 5.4","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server 15 SP1-LTSS","SUSE:Linux Enterprise Server 15 SP2-LTSS","SUSE:Linux Enterprise Server 15 SP3-LTSS","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP1","SUSE:Linux Enterprise Server for SAP Applications 15 SP2","SUSE:Linux Enterprise Server for SAP Applications 15 SP3","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Software Development Kit 12 SP5","SUSE:Manager Proxy 4.3","SUSE:Manager Server 4.3","openSUSE:Leap Micro 5.3","openSUSE:Leap Micro 5.4"],"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":"pci: phantom functions assigned to incorrect contexts","id":"CVE-2023-46839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","xen:xen"],"type":"missing_authorization","year":"2023"},"n_packages":25,"n_references":1,"next":{"headline":"VT-d: Failure to quarantine devices in !HVM builds","id":"CVE-2023-46840"},"packages":[{"ecosystem":"SUSE:Enterprise Storage 7.1","fixed":["4.14.6_10-150300.3.63.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Enterprise%20Storage%207.1","source":"SUSE-SU-2024:0264-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","fixed":["4.12.4_44-150100.3.101.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS","source":"SUSE-SU-2024:0269-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS","fixed":["4.13.5_10-150200.3.86.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS","source":"SUSE-SU-2024:0270-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS","fixed":["4.14.6_10-150300.3.63.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSS","source":"SUSE-SU-2024:0264-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-ESPOS","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP4-LTSS","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.1","fixed":["4.14.6_10-150300.3.63.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.1","source":"SUSE-SU-2024:0264-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.2","fixed":["4.14.6_10-150300.3.63.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.2","source":"SUSE-SU-2024:0264-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.3","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.3","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.4","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.4","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["4.12.4_44-3.103.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2024:0265-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP1-LTSS","fixed":["4.12.4_44-150100.3.101.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS","source":"SUSE-SU-2024:0269-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP2-LTSS","fixed":["4.13.5_10-150200.3.86.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS","source":"SUSE-SU-2024:0270-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP3-LTSS","fixed":["4.14.6_10-150300.3.63.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSS","source":"SUSE-SU-2024:0264-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP4-LTSS","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP4-LTSS","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["4.12.4_44-3.103.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2024:0265-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP1","fixed":["4.12.4_44-150100.3.101.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1","source":"SUSE-SU-2024:0269-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP2","fixed":["4.13.5_10-150200.3.86.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2","source":"SUSE-SU-2024:0270-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP3","fixed":["4.14.6_10-150300.3.63.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3","source":"SUSE-SU-2024:0264-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP4","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP4","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP5","fixed":["4.12.4_44-3.103.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5","source":"SUSE-SU-2024:0265-1"},{"ecosystem":"SUSE:Manager Proxy 4.3","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Manager%20Proxy%204.3","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"SUSE:Manager Server 4.3","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/suse/xen\u0026distro=SUSE%20Manager%20Server%204.3","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"openSUSE:Leap Micro 5.3","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/opensuse/xen\u0026distro=openSUSE%20Leap%20Micro%205.3","source":"SUSE-SU-2024:0268-1"},{"ecosystem":"openSUSE:Leap Micro 5.4","fixed":["4.16.5_12-150400.4.46.1"],"introduced":["0"],"last_affected":[],"package":"xen","purl":"pkg:rpm/opensuse/xen\u0026distro=openSUSE%20Leap%20Micro%205.4","source":"SUSE-SU-2024:0268-1"}],"prev":{"headline":"Linux: netback processing of zero-length transmit fragment","id":"CVE-2023-46838"},"products":["Xen"],"published":"2024-03-20","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":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"Attackers can exploit phantom function misconfiguration to access resources in a different domain, leading to privilege escalation or data leakage.","url":"https://insights.sbomify.com/CVE-2023-46839/"}