{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-38687 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-38687 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-38687 is a high-severity memory corruption vulnerability in QNAP Systems Inc. Surveillance Station, published on 29 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-38687 and fix it if it is affected.\n\nWhat it is: CVE-2021-38687 is a high-severity memory corruption vulnerability in QNAP Systems Inc. Surveillance Station, published on 29 Dec 2021. 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-2021-38687 in the wild and no public exploit code.\n\nAffected product: QNAP Systems Inc. Surveillance Station. 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-2021-38687/ (Markdown: https://insights.sbomify.com/CVE-2021-38687/index.md)","id":"CVE-2021-38687","markdown":"https://insights.sbomify.com/CVE-2021-38687/index.md","name":"CVE-2021-38687","record":{"aliases":["GHSA-8397-33w7-cmhc"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"QNAP Surveillance Station","requires_auth":"none","summary":"Attackers can execute arbitrary code on QNAP NAS devices via a stack buffer overflow in Surveillance Station.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"qnap","cpe":[{"product":"surveillance_station","vendor":"qnap"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A stack buffer overflow vulnerability has been reported to affect QNAP NAS running Surveillance Station. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of Surveillance Station: QTS 5.0.0 (64 bit): Surveillance Station 5.2.0.4.2 ( 2021/10/26 ) and later QTS 5.0.0 (32 bit): Surveillance Station 5.2.0.3.2 ( 2021/10/26 ) and later QTS 4.3.6 (64 bit): Surveillance Station 5.1.5.4.6 ( 2021/10/26 ) and later QTS 4.3.6 (32 bit): Surveillance Station 5.1.5.3.6 ( 2021/10/26 ) and later QTS 4.3.3: Surveillance Station 5.1.5.3.6 ( 2021/10/26 ) and later","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":"Stack Overflow Vulnerability in Surveillance Station","id":"CVE-2021-38687","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Improper Authentication in Qfile","id":"CVE-2021-38688"},"packages":[],"prev":{"headline":"Improper Authentication Vulnerability in VioStor","id":"CVE-2021-38686"},"products":["Surveillance Station"],"published":"2021-12-29","related":[{"cvss_score":9.8,"headline":"Stack Buffer Overflow in Surveillance Station","id":"CVE-2021-28797","kev_date_added":null,"published":"2021-04-14"},{"cvss_score":9.8,"headline":"Stack Buffer Overflow in Surveillance Station","id":"CVE-2020-2501","kev_date_added":null,"published":"2021-02-17"}],"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":"2024-09-16","vendors":["QNAP Systems Inc."]},"summary":"Attackers can execute arbitrary code on QNAP NAS devices via a stack buffer overflow in Surveillance Station.","url":"https://insights.sbomify.com/CVE-2021-38687/"}