{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2018-8378 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-8378 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-8378 is a medium-severity vulnerability in Microsoft Excel Viewer, published on 15 Aug 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-8378 and fix it if it is affected.\n\nWhat it is: CVE-2018-8378 is a medium-severity vulnerability in Microsoft Excel Viewer, published on 15 Aug 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2018-8378 in the wild and no public exploit code.\n\nAffected product: Microsoft Excel Viewer. 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-2018-8378/ (Markdown: https://insights.sbomify.com/CVE-2018-8378/index.md)","id":"CVE-2018-8378","markdown":"https://insights.sbomify.com/CVE-2018-8378/index.md","name":"CVE-2018-8378","record":{"aliases":["GHSA-q4j3-h8qw-m7m4"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Microsoft Office suite","requires_auth":"none","summary":"An attacker can disclose memory contents via an uninitialized variable in Microsoft Office applications, potentially exposing sensitive data.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"excel_viewer","vendor":"microsoft"},{"product":"office","vendor":"microsoft"},{"product":"office_compatibility_pack","vendor":"microsoft"},{"product":"office_web_apps","vendor":"microsoft"},{"product":"office_word_viewer","vendor":"microsoft"},{"product":"sharepoint_enterprise_server_2013","vendor":"microsoft"},{"product":"sharepoint_enterprise_server_2016","vendor":"microsoft"},{"product":"sharepoint_server","vendor":"microsoft"},{"product":"word_automation_services","vendor":"microsoft"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.0"},"cwes":[{"id":"CWE-908","name":"Use of Uninitialized Resource"},{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"An information disclosure vulnerability exists when Microsoft Office software reads out of bound memory due to an uninitialized variable, which could disclose the contents of memory, aka \"Microsoft Office Information Disclosure Vulnerability.\" This affects Word, Microsoft SharePoint Server, Microsoft Office Word Viewer, Microsoft Excel Viewer, Microsoft SharePoint, Microsoft Office.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Information disclosure in Microsoft Excel Viewer","id":"CVE-2018-8378","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:excel_viewer","products":["microsoft:excel_viewer","microsoft:office","microsoft:office_compatibility_pack","microsoft:office_web_apps","microsoft:sharepoint_server"],"type":"information_disclosure","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Memory corruption in Microsoft Excel","id":"CVE-2018-8379"},"packages":[],"prev":{"headline":"Memory corruption in Microsoft Edge","id":"CVE-2018-8377"},"products":["Microsoft Excel Viewer","Microsoft Office","Microsoft Office Word Viewer","Microsoft SharePoint","Microsoft SharePoint Server","Word"],"published":"2018-08-15","related":[{"cvss_score":8.8,"headline":"Microsoft MSHTML Remote Code Execution","id":"CVE-2019-0541","kev_date_added":"2021-11-03","published":"2019-01-08"},{"cvss_score":8.8,"headline":"Microsoft PowerPoint Memory Corruption","id":"CVE-2015-2424","kev_date_added":"2022-03-03","published":"2015-07-14"},{"cvss_score":7.8,"headline":"Microsoft Graphics Component Memory Corruption","id":"CVE-2013-3906","kev_date_added":"2022-02-15","published":"2013-11-06"},{"cvss_score":9.3,"headline":"Memory corruption in n/a","id":"CVE-2008-0113","kev_date_added":null,"published":"2008-03-11"},{"cvss_score":7.8,"headline":"Memory corruption in Microsoft Excel Viewer","id":"CVE-2018-8432","kev_date_added":null,"published":"2018-10-10"},{"cvss_score":5.5,"headline":"Security feature bypass in Microsoft Excel Viewer","id":"CVE-2019-0540","kev_date_added":null,"published":"2019-03-06"},{"cvss_score":5.5,"headline":"Information disclosure in Microsoft Excel Viewer","id":"CVE-2018-8427","kev_date_added":null,"published":"2018-10-10"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["Microsoft"]},"summary":"An attacker can disclose memory contents via an uninitialized variable in Microsoft Office applications, potentially exposing sensitive data.","url":"https://insights.sbomify.com/CVE-2018-8378/"}