{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-3563 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-3563 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-3563 is a critical vulnerability in Facebook Wangle, published on 29 Apr 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-2019-3563 and fix it if it is affected.\n\nWhat it is: CVE-2019-3563 is a critical vulnerability in Facebook Wangle, published on 29 Apr 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-2019-3563 in the wild and no public exploit code.\n\nAffected product: Facebook Wangle. 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-2019-3563/ (Markdown: https://insights.sbomify.com/CVE-2019-3563/index.md)","id":"CVE-2019-3563","markdown":"https://insights.sbomify.com/CVE-2019-3563/index.md","name":"CVE-2019-3563","record":{"aliases":["GHSA-r679-82m4-w988"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Wangle networking library","requires_auth":"none","summary":"A buffer underflow in Wangle's LineBasedFrameDecoder can lead to memory corruption, potentially causing denial of service or arbitrary code execution.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"facebook","cpe":[{"product":"wangle","vendor":"facebook"}],"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-126","name":"Buffer Over-read"}],"description":"Wangle's LineBasedFrameDecoder contains logic for identifying newlines which incorrectly advances a buffer, leading to a potential underflow. This affects versions of Wangle prior to v2019.04.22.00","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":"Integer overflow in Wangle","id":"CVE-2019-3563","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Improper Input Validation and Excessive Iteration in Go Facebook Thrift","id":"CVE-2019-3564"},"packages":[],"prev":{"headline":"Cross-site scripting in Oculus Browser","id":"CVE-2019-3562"},"products":["Wangle"],"published":"2019-04-29","related":[{"cvss_score":5.9,"headline":"Wangle's AcceptRoutingHandler incorrectly casts a socket when accepting a TLS 1.3 connection, leading to a potential denial of service attac","id":"CVE-2019-3554","kev_date_added":null,"published":"2019-01-15"}],"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":"2024-08-04","vendors":["Facebook"]},"summary":"A buffer underflow in Wangle's LineBasedFrameDecoder can lead to memory corruption, potentially causing denial of service or arbitrary code execution.","url":"https://insights.sbomify.com/CVE-2019-3563/"}