{"answers":{"affected":"2 open source packages ship an affected version, including github.com/vapor/vapor. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-32742 in the wild and no public exploit code.","fix":"Upgrade github.com/vapor/vapor to 4.47.2 or later.","what":"CVE-2021-32742 is a high-severity denial of service vulnerability in vapor, published on 9 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-32742 and fix it if it is affected.\n\nWhat it is: CVE-2021-32742 is a high-severity denial of service vulnerability in vapor, published on 9 Jul 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-32742 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/vapor/vapor (SwiftURL): affected all versions; fixed in 4.47.2\n- github.com/vapor/vapor (SwiftURL): affected all versions; fixed in 4.47.2\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-2021-32742/ (Markdown: https://insights.sbomify.com/CVE-2021-32742/index.md)","id":"CVE-2021-32742","markdown":"https://insights.sbomify.com/CVE-2021-32742/index.md","name":"CVE-2021-32742","record":{"aliases":["GHSA-pqwh-c2f3-vxmq"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Swift web framework","requires_auth":"low_privilege","summary":"Attackers can crash the server or expose memory by feeding untrusted data to the base32 decoding function in the Vapor Swift framework.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"vapor","vendor":"vapor_project"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"Vapor is a web framework for Swift. In versions 4.47.1 and prior, bug in the `Data.init(base32Encoded:)` function opens up the potential for exposing server memory and/or crashing the server (Denial of Service) for applications where untrusted data can end up in said function. Vapor does not currently use this function itself so this only impact applications that use the impacted function directly or through other dependencies. The vulnerability is patched in version 4.47.2. As a workaround, one may use an alternative to Vapor's built-in `Data.init(base32Encoded:)`.","ecosystems":["SwiftURL"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Untrusted data fed into `Data.init(base32Encoded:)` can result in exposing server memory and/or crash","id":"CVE-2021-32742","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"SwiftURL","product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":2,"n_references":2,"next":{"headline":"Passwords used to access external services inadvertently exposed through API","id":"CVE-2021-32743"},"packages":[{"ecosystem":"SwiftURL","fixed":["4.47.2"],"introduced":["0"],"last_affected":[],"package":"github.com/vapor/vapor","purl":null,"source":"GHSA-pqwh-c2f3-vxmq"},{"ecosystem":"SwiftURL","fixed":["4.47.2"],"introduced":["0"],"last_affected":[],"package":"github.com/vapor/vapor","purl":"pkg:swift/github.com/vapor/vapor","source":"GHSA-pqwh-c2f3-vxmq"}],"prev":{"headline":"Lack of ratelimit on public share link mount endpoint","id":"CVE-2021-32741"},"products":["vapor"],"published":"2021-07-09","related":[{"cvss_score":8.5,"headline":"Arbitrary file read un Vapor","id":"CVE-2020-15230","kev_date_added":null,"published":"2020-10-02"},{"cvss_score":5.3,"headline":"Denial of Service","id":"CVE-2021-21328","kev_date_added":null,"published":"2021-02-26"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2024-08-03","vendors":["vapor"]},"summary":"Attackers can crash the server or expose memory by feeding untrusted data to the base32 decoding function in the Vapor Swift framework.","url":"https://insights.sbomify.com/CVE-2021-32742/"}