{"answers":{"affected":"It affects 86 products.","exploited":"There is no known exploitation of CVE-2023-31355 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-31355 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-31355 is a medium-severity memory corruption vulnerability in Amd Epyc 72f3 Firmware, published on 5 Aug 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-2023-31355 and fix it if it is affected.\n\nWhat it is: CVE-2023-31355 is a medium-severity memory corruption vulnerability in Amd Epyc 72f3 Firmware, published on 5 Aug 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-2023-31355 in the wild and no public exploit code.\n\nAffected product: Amd Epyc 72f3 Firmware. 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-2023-31355/ (Markdown: https://insights.sbomify.com/CVE-2023-31355/index.md)","id":"CVE-2023-31355","markdown":"https://insights.sbomify.com/CVE-2023-31355/index.md","name":"CVE-2023-31355","record":{"aliases":["GHSA-x6rx-7w39-qpg5"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"AMD EPYC firmware","requires_auth":"high_privilege","summary":"A malicious hypervisor can overwrite guest UMC seed to read memory from decommissioned guests, affecting AMD EPYC processors.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMD","cpe":[{"product":"epyc_7203_firmware","vendor":"amd"},{"product":"epyc_7203p_firmware","vendor":"amd"},{"product":"epyc_72f3_firmware","vendor":"amd"},{"product":"epyc_7303_firmware","vendor":"amd"},{"product":"epyc_7303p_firmware","vendor":"amd"},{"product":"epyc_7313_firmware","vendor":"amd"},{"product":"epyc_7313p_firmware","vendor":"amd"},{"product":"epyc_7343_firmware","vendor":"amd"},{"product":"epyc_7373x_firmware","vendor":"amd"},{"product":"epyc_73f3_firmware","vendor":"amd"},{"product":"epyc_7413_firmware","vendor":"amd"},{"product":"epyc_7443_firmware","vendor":"amd"},{"product":"epyc_7443p_firmware","vendor":"amd"},{"product":"epyc_7453_firmware","vendor":"amd"},{"product":"epyc_7473x_firmware","vendor":"amd"},{"product":"epyc_74f3_firmware","vendor":"amd"},{"product":"epyc_7513_firmware","vendor":"amd"},{"product":"epyc_7543_firmware","vendor":"amd"},{"product":"epyc_7543p_firmware","vendor":"amd"},{"product":"epyc_7573x_firmware","vendor":"amd"},{"product":"epyc_75f3_firmware","vendor":"amd"},{"product":"epyc_7643_firmware","vendor":"amd"},{"product":"epyc_7643p_firmware","vendor":"amd"},{"product":"epyc_7663_firmware","vendor":"amd"},{"product":"epyc_7663p_firmware","vendor":"amd"},{"product":"epyc_7713_firmware","vendor":"amd"},{"product":"epyc_7713p_firmware","vendor":"amd"},{"product":"epyc_7763_firmware","vendor":"amd"},{"product":"epyc_7773x_firmware","vendor":"amd"},{"product":"epyc_8024p_firmware","vendor":"amd"},{"product":"epyc_8024pn_firmware","vendor":"amd"},{"product":"epyc_8124p_firmware","vendor":"amd"},{"product":"epyc_8124pn_firmware","vendor":"amd"},{"product":"epyc_8224p_firmware","vendor":"amd"},{"product":"epyc_8224pn_firmware","vendor":"amd"},{"product":"epyc_8324p_firmware","vendor":"amd"},{"product":"epyc_8324pn_firmware","vendor":"amd"},{"product":"epyc_8434p_firmware","vendor":"amd"},{"product":"epyc_8434pn_firmware","vendor":"amd"},{"product":"epyc_8534p_firmware","vendor":"amd"},{"product":"epyc_8534pn_firmware","vendor":"amd"},{"product":"epyc_9124_firmware","vendor":"amd"},{"product":"epyc_9174f_firmware","vendor":"amd"},{"product":"epyc_9184x_firmware","vendor":"amd"},{"product":"epyc_9224_firmware","vendor":"amd"},{"product":"epyc_9254_firmware","vendor":"amd"},{"product":"epyc_9274f_firmware","vendor":"amd"},{"product":"epyc_9334_firmware","vendor":"amd"},{"product":"epyc_9354_firmware","vendor":"amd"},{"product":"epyc_9354p_firmware","vendor":"amd"},{"product":"epyc_9374f_firmware","vendor":"amd"},{"product":"epyc_9384x_firmware","vendor":"amd"},{"product":"epyc_9454_firmware","vendor":"amd"},{"product":"epyc_9454p_firmware","vendor":"amd"},{"product":"epyc_9474f_firmware","vendor":"amd"},{"product":"epyc_9534_firmware","vendor":"amd"},{"product":"epyc_9554_firmware","vendor":"amd"},{"product":"epyc_9554p_firmware","vendor":"amd"},{"product":"epyc_9634_firmware","vendor":"amd"},{"product":"epyc_9654_firmware","vendor":"amd"},{"product":"epyc_9654p_firmware","vendor":"amd"},{"product":"epyc_9684x_firmware","vendor":"amd"},{"product":"epyc_9734_firmware","vendor":"amd"},{"product":"epyc_9754_firmware","vendor":"amd"},{"product":"epyc_9754s_firmware","vendor":"amd"},{"product":"epyc_embedded_7313_firmware","vendor":"amd"},{"product":"epyc_embedded_7313p_firmware","vendor":"amd"},{"product":"epyc_embedded_7413_firmware","vendor":"amd"},{"product":"epyc_embedded_7443_firmware","vendor":"amd"},{"product":"epyc_embedded_7443p_firmware","vendor":"amd"},{"product":"epyc_embedded_7543_firmware","vendor":"amd"},{"product":"epyc_embedded_7543p_firmware","vendor":"amd"},{"product":"epyc_embedded_7643_firmware","vendor":"amd"},{"product":"epyc_embedded_7713_firmware","vendor":"amd"},{"product":"epyc_embedded_7713p_firmware","vendor":"amd"},{"product":"epyc_embedded_9124_firmware","vendor":"amd"},{"product":"epyc_embedded_9254_firmware","vendor":"amd"},{"product":"epyc_embedded_9354_firmware","vendor":"amd"},{"product":"epyc_embedded_9354p_firmware","vendor":"amd"},{"product":"epyc_embedded_9454_firmware","vendor":"amd"},{"product":"epyc_embedded_9454p_firmware","vendor":"amd"},{"product":"epyc_embedded_9534_firmware","vendor":"amd"},{"product":"epyc_embedded_9554_firmware","vendor":"amd"},{"product":"epyc_embedded_9554p_firmware","vendor":"amd"},{"product":"epyc_embedded_9654_firmware","vendor":"amd"},{"product":"epyc_embedded_9654p_firmware","vendor":"amd"}],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"}],"description":"Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2023-12-08","github_poc":1,"max_poc_stars":8,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-12-08T13:51:37Z","kind":"github_poc","ref":"https://github.com/Freax13/cve-2023-31355-poc","stars":8,"title":null}],"tier":"poc_unverified"},"has_fix":null,"headline":"Memory corruption in 3rd Gen AMD EPYC™ Processors","id":"CVE-2023-31355","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"amd:epyc_72f3_firmware","products":["amd:epyc_72f3_firmware","amd:epyc_7313_firmware","amd:epyc_7313p_firmware","amd:epyc_7343_firmware","amd:epyc_7373x_firmware","amd:epyc_73f3_firmware","amd:epyc_7413_firmware","amd:epyc_7443_firmware","amd:epyc_7443p_firmware","amd:epyc_7453_firmware","amd:epyc_7473x_firmware","amd:epyc_74f3_firmware","amd:epyc_7513_firmware","amd:epyc_7543_firmware","amd:epyc_7543p_firmware","amd:epyc_7573x_firmware","amd:epyc_75f3_firmware","amd:epyc_7643_firmware","amd:epyc_7663_firmware","amd:epyc_7713_firmware","amd:epyc_7713p_firmware","amd:epyc_7763_firmware","amd:epyc_7773x_firmware"],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Memory corruption in AMD EPYC™ 7003 Processors","id":"CVE-2023-31356"},"packages":[],"prev":{"headline":"Information disclosure in AMD EPYC™ 9004 Processors","id":"CVE-2023-31352"},"products":["3rd Gen AMD EPYC™ Processors","4th Gen AMD EPYC™ Processors","AMD EPYC™ Embedded 7003","AMD EPYC™ Embedded 9003"],"published":"2024-08-05","related":[{"cvss_score":7.9,"headline":"Memory corruption in 3rd Gen AMD EPYC™ Processors","id":"CVE-2024-21980","kev_date_added":null,"published":"2024-08-05"},{"cvss_score":6.5,"headline":"Other in AMD EPYC™ 7003 Series Processors","id":"CVE-2023-20591","kev_date_added":null,"published":"2024-08-13"},{"cvss_score":6.1,"headline":"Denial of service in 2nd Gen AMD EPYC™ Processors","id":"CVE-2023-20533","kev_date_added":null,"published":"2023-11-14"},{"cvss_score":6,"headline":"Information disclosure in 3rd Gen AMD EPYC™ Processors","id":"CVE-2024-21978","kev_date_added":null,"published":"2024-08-05"},{"cvss_score":6,"headline":"Information disclosure in 3rd Gen AMD EPYC™ Processors","id":"CVE-2023-31346","kev_date_added":null,"published":"2024-02-13"},{"cvss_score":5.3,"headline":"Security feature bypass in AMD EPYC™ 7003 Processors","id":"CVE-2023-20584","kev_date_added":null,"published":"2024-08-13"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-08-06","vendors":["AMD"]},"summary":"A malicious hypervisor can overwrite guest UMC seed to read memory from decommissioned guests, affecting AMD EPYC processors.","url":"https://insights.sbomify.com/CVE-2023-31355/"}