{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-35173 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-35173 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-35173 is a medium-severity denial of service vulnerability in nextcloud security-advisories, published on 23 Jun 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2023-35173 and fix it if it is affected.\n\nWhat it is: CVE-2023-35173 is a medium-severity denial of service vulnerability in nextcloud security-advisories, published on 23 Jun 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2023-35173 in the wild and no public exploit code.\n\nAffected product: nextcloud security-advisories. 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-2023-35173/ (Markdown: https://insights.sbomify.com/CVE-2023-35173/index.md)","id":"CVE-2023-35173","markdown":"https://insights.sbomify.com/CVE-2023-35173/index.md","name":"CVE-2023-35173","record":{"aliases":["GHSA-x7c7-v5r3-mg37"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Nextcloud E2E encryption app","requires_auth":"low_privilege","summary":"An attacker can render previously dropped files inaccessible by providing invalid metadata, causing a denial of service for Nextcloud users.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"end-to-end_encryption","vendor":"nextcloud"}],"cvss":{"score":5.7,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Nextcloud End-to-end encryption app provides all the necessary APIs to implement End-to-End encryption on the client side. By providing an invalid meta data file, an attacker can make previously dropped files inaccessible. It is recommended that the Nextcloud End-to-end encryption app is upgraded to version 1.12.4 that contains the fix.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"End-to-End encrypted file-drops can be made inaccessible","id":"CVE-2023-35173","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Livebook Desktop's protocol handler can be exploited to execute arbitrary command on Windows","id":"CVE-2023-35174"},"packages":[],"prev":{"headline":"Nextcloud Server password reset endpoint is not brute force protected","id":"CVE-2023-35172"},"products":["security-advisories"],"published":"2023-06-23","related":[{"cvss_score":6.5,"headline":"Missing authorization in Nextcloud End-to-End Encryption","id":"CVE-2021-22906","kev_date_added":null,"published":"2021-06-11"}],"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":"2024-08-02","vendors":["nextcloud"]},"summary":"An attacker can render previously dropped files inaccessible by providing invalid metadata, causing a denial of service for Nextcloud users.","url":"https://insights.sbomify.com/CVE-2023-35173/"}