{"answers":{"affected":"2 open source packages ship an affected version, including github.com/apple/swift-nio-ssl. It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-8849 in the wild and no public exploit code.","fix":"Upgrade github.com/apple/swift-nio-ssl to 2.4.1 or later.","what":"CVE-2019-8849 is a critical vulnerability in Apple Swift-Ubuntu, published on 18 Dec 2019."},"fix_prompt":"Check this codebase for CVE-2019-8849 and fix it if it is affected.\n\nWhat it is: CVE-2019-8849 is a critical vulnerability in Apple Swift-Ubuntu, published on 18 Dec 2019. \nExploitation: There is no known exploitation of CVE-2019-8849 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/apple/swift-nio-ssl (SwiftURL): affected from 2.0.0; fixed in 2.4.1\n- github.com/apple/swift-nio-ssl (SwiftURL): affected from 2.0.0; fixed in 2.4.1\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-2019-8849/ (Markdown: https://insights.sbomify.com/CVE-2019-8849/index.md)","id":"CVE-2019-8849","markdown":"https://insights.sbomify.com/CVE-2019-8849/index.md","name":"CVE-2019-8849","record":{"aliases":["GHSA-frg3-gpcx-968f"],"analysis":null,"analysis_generated_by":null,"assigner":"apple","cpe":[{"product":"swiftnio_ssl","vendor":"apple"}],"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":[],"description":"The issue was addressed by signaling that an executable stack is not required. This issue is fixed in SwiftNIO SSL 2.4.1. A SwiftNIO application using TLS may be able to execute arbitrary code.","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":"SwiftNIO SSL arbitrary code execution vulnerability","id":"CVE-2019-8849","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"SwiftURL","product":null,"products":[],"type":null,"year":"2019"},"n_packages":2,"n_references":1,"next":{"headline":"Information disclosure in iOS and iPadOS","id":"CVE-2019-8850"},"packages":[{"ecosystem":"SwiftURL","fixed":["2.4.1"],"introduced":["2.0.0"],"last_affected":[],"package":"github.com/apple/swift-nio-ssl","purl":null,"source":"GHSA-frg3-gpcx-968f"},{"ecosystem":"SwiftURL","fixed":["2.4.1"],"introduced":["2.0.0"],"last_affected":[],"package":"github.com/apple/swift-nio-ssl","purl":"pkg:swift/github.com/apple/swift-nio-ssl","source":"GHSA-frg3-gpcx-968f"}],"prev":{"headline":"Privilege escalation in iOS and iPadOS","id":"CVE-2019-8848"},"products":["Swift-Ubuntu"],"published":"2019-12-18","related":[{"cvss_score":7.7,"headline":"Memory corruption in swift-nio-ssl","id":"CVE-2026-43820","kev_date_added":null,"published":"2026-07-23"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Apple"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2019-8849/"}