{"answers":{"affected":"It affects 38 products.","exploited":"There is no known exploitation of CVE-2021-26342 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-26342 is a low-severity vulnerability in Amd Epyc 72f3 Firmware, published on 11 May 2022. 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-2021-26342 and fix it if it is affected.\n\nWhat it is: CVE-2021-26342 is a low-severity vulnerability in Amd Epyc 72f3 Firmware, published on 11 May 2022. 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-2021-26342 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-2021-26342/ (Markdown: https://insights.sbomify.com/CVE-2021-26342/index.md)","id":"CVE-2021-26342","markdown":"https://insights.sbomify.com/CVE-2021-26342/index.md","name":"CVE-2021-26342","record":{"aliases":["GHSA-wp53-p3r5-cq4w"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"AMD EPYC Processors","requires_auth":"low_privilege","summary":"A CPU microcode flaw in AMD EPYC processors may allow disclosure of SEV guest memory contents due to stale TLB translations.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMD","cpe":[{"product":"epyc_7001_firmware","vendor":"amd"},{"product":"epyc_7251_firmware","vendor":"amd"},{"product":"epyc_7261_firmware","vendor":"amd"},{"product":"epyc_7281_firmware","vendor":"amd"},{"product":"epyc_72f3_firmware","vendor":"amd"},{"product":"epyc_7301_firmware","vendor":"amd"},{"product":"epyc_7313_firmware","vendor":"amd"},{"product":"epyc_7313p_firmware","vendor":"amd"},{"product":"epyc_7343_firmware","vendor":"amd"},{"product":"epyc_7351_firmware","vendor":"amd"},{"product":"epyc_7351p_firmware","vendor":"amd"},{"product":"epyc_7371_firmware","vendor":"amd"},{"product":"epyc_7373x_firmware","vendor":"amd"},{"product":"epyc_73f3_firmware","vendor":"amd"},{"product":"epyc_7401_firmware","vendor":"amd"},{"product":"epyc_7401p_firmware","vendor":"amd"},{"product":"epyc_7413_firmware","vendor":"amd"},{"product":"epyc_7443_firmware","vendor":"amd"},{"product":"epyc_7443p_firmware","vendor":"amd"},{"product":"epyc_7451_firmware","vendor":"amd"},{"product":"epyc_7453_firmware","vendor":"amd"},{"product":"epyc_7473x_firmware","vendor":"amd"},{"product":"epyc_74f3_firmware","vendor":"amd"},{"product":"epyc_7501_firmware","vendor":"amd"},{"product":"epyc_7513_firmware","vendor":"amd"},{"product":"epyc_7543_firmware","vendor":"amd"},{"product":"epyc_7543p_firmware","vendor":"amd"},{"product":"epyc_7551_firmware","vendor":"amd"},{"product":"epyc_7551p_firmware","vendor":"amd"},{"product":"epyc_7573x_firmware","vendor":"amd"},{"product":"epyc_75f3_firmware","vendor":"amd"},{"product":"epyc_7601_firmware","vendor":"amd"},{"product":"epyc_7643_firmware","vendor":"amd"},{"product":"epyc_7663_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"}],"cvss":{"score":3.3,"severity":"low","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[],"description":"In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.","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":"Information disclosure in EPYC™ Processors","id":"CVE-2021-26342","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":"information_disclosure","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in 3rd Gen EPYC","id":"CVE-2021-26343"},"packages":[],"prev":{"headline":"Information disclosure in AMD Processors","id":"CVE-2021-26341"},"products":["EPYC™ Processors"],"published":"2022-05-11","related":[{"cvss_score":8.4,"headline":"A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation","id":"CVE-2021-26340","kev_date_added":null,"published":"2021-12-10"},{"cvss_score":7.8,"headline":"Memory corruption in 1st Gen EPYC","id":"CVE-2021-26398","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":7.8,"headline":"Code injection in 1st Gen AMD EPYC™","id":"CVE-2021-26331","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":7.8,"headline":"Code injection in Athlon™ Series","id":"CVE-2021-26335","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":7.5,"headline":"Race condition in AMD EPYC™ 7001 Processors","id":"CVE-2023-20578","kev_date_added":null,"published":"2024-08-13"},{"cvss_score":7.5,"headline":"Denial of service in 1st/2nd/3rd Gen AMD EPYC™ Processors","id":"CVE-2020-12988","kev_date_added":null,"published":"2021-06-11"},{"cvss_score":7.4,"headline":"Race condition in 1st Gen AMD EPYC™ Processors","id":"CVE-2021-26356","kev_date_added":null,"published":"2023-05-09"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["AMD"]},"summary":"A CPU microcode flaw in AMD EPYC processors may allow disclosure of SEV guest memory contents due to stale TLB translations.","url":"https://insights.sbomify.com/CVE-2021-26342/"}