{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-3557 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-3557 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-3557 is a critical memory corruption vulnerability in Facebook HHVM, published on 15 Jan 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-2019-3557 and fix it if it is affected.\n\nWhat it is: CVE-2019-3557 is a critical memory corruption vulnerability in Facebook HHVM, published on 15 Jan 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-2019-3557 in the wild and no public exploit code.\n\nAffected product: Facebook HHVM. 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-2019-3557/ (Markdown: https://insights.sbomify.com/CVE-2019-3557/index.md)","id":"CVE-2019-3557","markdown":"https://insights.sbomify.com/CVE-2019-3557/index.md","name":"CVE-2019-3557","record":{"aliases":["GHSA-x6p7-p3gg-q926","UBUNTU-CVE-2019-3557"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"HHVM runtime","requires_auth":"none","summary":"Out-of-bounds read in HHVM stream implementations allows attackers to cause denial of service or disclose sensitive memory contents.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"facebook","cpe":[{"product":"hhvm","vendor":"facebook"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"The implementations of streams for bz2 and php://output improperly implemented their readImpl functions, returning -1 consistently. This behavior caused some stream functions, such as stream_get_line, to trigger an out-of-bounds read when operating on such malformed streams. The implementations were updated to return valid values consistently. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).","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":"Memory corruption in HHVM","id":"CVE-2019-3557","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2019"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in Facebook Thrift","id":"CVE-2019-3558"},"packages":[],"prev":{"headline":"Path traversal in HHVM","id":"CVE-2019-3556"},"products":["HHVM"],"published":"2019-01-15","related":[{"cvss_score":9.8,"headline":"HHVM 4.172.0 and all prior versions use TLS 1.0 for secure connections when handling tls:// URLs in the stream extension.","id":"CVE-2022-36937","kev_date_added":null,"published":"2023-05-10"},{"cvss_score":9.8,"headline":"Use after free in HHVM","id":"CVE-2020-1900","kev_date_added":null,"published":"2021-03-11"},{"cvss_score":9.8,"headline":"Integer overflow in HHVM","id":"CVE-2020-1916","kev_date_added":null,"published":"2021-03-10"},{"cvss_score":9.8,"headline":"Memory corruption in HHVM","id":"CVE-2020-1917","kev_date_added":null,"published":"2021-03-10"},{"cvss_score":9.8,"headline":"Integer overflow in HHVM","id":"CVE-2021-24025","kev_date_added":null,"published":"2021-03-10"},{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2016-1000004","kev_date_added":null,"published":"2020-02-19"},{"cvss_score":9.8,"headline":"Other in n/a","id":"CVE-2016-1000005","kev_date_added":null,"published":"2020-02-19"}],"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":"Out-of-bounds read in HHVM stream implementations allows attackers to cause denial of service or disclose sensitive memory contents.","url":"https://insights.sbomify.com/CVE-2019-3557/"}