{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2018-20655 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-20655 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-20655 is a critical memory corruption vulnerability in Facebook WhatsApp Business for iOS, published on 14 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-20655 and fix it if it is affected.\n\nWhat it is: CVE-2018-20655 is a critical memory corruption vulnerability in Facebook WhatsApp Business for iOS, published on 14 Jun 2019. 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-2018-20655 in the wild and no public exploit code.\n\nAffected product: Facebook WhatsApp Business for iOS. 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-2018-20655/ (Markdown: https://insights.sbomify.com/CVE-2018-20655/index.md)","id":"CVE-2018-20655","markdown":"https://insights.sbomify.com/CVE-2018-20655/index.md","name":"CVE-2018-20655","record":{"aliases":["GHSA-99ph-jqg7-g9v9"],"analysis":{"component_type":"mobile_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"WhatsApp iOS app","requires_auth":"none","summary":"A stack-based buffer overflow in WhatsApp for iOS allows remote code execution via malicious packets during incoming calls.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"facebook","cpe":[{"product":"whatsapp","vendor":"whatsapp"},{"product":"whatsapp_business","vendor":"whatsapp"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"When receiving calls using WhatsApp for iOS, a missing size check when parsing a sender-provided packet allowed for a stack-based overflow. This issue affects WhatsApp for iOS prior to v2.18.90.24 and WhatsApp Business for iOS prior to v2.18.90.24.","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":"Memory corruption in WhatsApp Business for iOS","id":"CVE-2018-20655","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in n/a","id":"CVE-2018-20657"},"packages":[],"prev":{"headline":"Denial of service in n/a","id":"CVE-2018-20652"},"products":["WhatsApp Business for iOS","WhatsApp for iOS"],"published":"2019-06-14","related":[{"cvss_score":9.8,"headline":"WhatsApp VOIP Stack Buffer Overflow","id":"CVE-2019-3568","kev_date_added":"2022-04-19","published":"2019-05-14"},{"cvss_score":8.2,"headline":"WhatsApp Cross-Site Scripting","id":"CVE-2019-18426","kev_date_added":"2022-05-23","published":"2020-01-21"},{"cvss_score":5.4,"headline":"Meta Platforms WhatsApp Incorrect Authorization","id":"CVE-2025-55177","kev_date_added":"2025-09-02","published":"2025-08-29"},{"cvss_score":9.8,"headline":"Integer overflow in WhatsApp Business for Android","id":"CVE-2022-36934","kev_date_added":null,"published":"2022-09-22"},{"cvss_score":9.8,"headline":"Memory corruption in WhatsApp Business for Android","id":"CVE-2021-24042","kev_date_added":null,"published":"2022-01-04"},{"cvss_score":9.8,"headline":"Memory corruption in WhatsApp Business for Android","id":"CVE-2021-24041","kev_date_added":null,"published":"2021-12-07"},{"cvss_score":9.8,"headline":"Memory corruption in WhatsApp Business for Android","id":"CVE-2021-24026","kev_date_added":null,"published":"2021-04-06"}],"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":["Facebook"]},"summary":"A stack-based buffer overflow in WhatsApp for iOS allows remote code execution via malicious packets during incoming calls.","url":"https://insights.sbomify.com/CVE-2018-20655/"}