{"answers":{"affected":"3 open source packages ship an affected version, including golang.org/x/crypto. It affects 2 products.","exploited":"There is no known exploitation of CVE-2019-11840 in the wild and no public exploit code.","fix":"Upgrade golang.org/x/crypto to 0.0.0-20190320223903-b7391e95e576 or later.","what":"CVE-2019-11840 is a medium-severity vulnerability in Debian Debian Linux, published on 9 May 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-2019-11840 and fix it if it is affected.\n\nWhat it is: CVE-2019-11840 is a medium-severity vulnerability in Debian Debian Linux, published on 9 May 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-2019-11840 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- golang.org/x/crypto (Go): affected all versions; fixed in 0.0.0-20190320223903-b7391e95e576\n- golang.org/x/crypto (Go): affected all versions; fixed in 0.0.0-20190320223903-b7391e95e576\n- golang.org/x/crypto (Go): affected all versions; fixed in 0.0.0-20190320223903-b7391e95e576\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-2019-11840/ (Markdown: https://insights.sbomify.com/CVE-2019-11840/index.md)","id":"CVE-2019-11840","markdown":"https://insights.sbomify.com/CVE-2019-11840/index.md","name":"CVE-2019-11840","record":{"aliases":["DEBIAN-CVE-2019-11840","DLA-1840-1","DLA-2442-1","DLA-2454-1","DLA-2527-1","GHSA-r5c5-pr8j-pfp7","GO-2022-0209","UBUNTU-CVE-2019-11840"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Go cryptography library","requires_auth":"none","summary":"A flaw in the Go salsa20 implementation causes keystream repetition after 256 GiB, leading to loss of confidentiality in encryption or CSPRNG applications.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"crypto","vendor":"golang"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-330","name":"Use of Insufficiently Random Values"}],"description":"An issue was discovered in the supplementary Go cryptography library, golang.org/x/crypto, before v0.0.0-20190320223903-b7391e95e576. A flaw was found in the amd64 implementation of the golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa packages. If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications.","ecosystems":["Go"],"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":"golang.org/x/crypto/salsa20/salsa uses insufficiently random values","id":"CVE-2019-11840","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"debian:debian_linux","products":["debian:debian_linux"],"type":"weak_cryptography","year":"2019"},"n_packages":3,"n_references":11,"next":{"headline":"Golang/x/crypto message forgery vulnerability","id":"CVE-2019-11841"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20190320223903-b7391e95e576"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/crypto","purl":null,"source":"GHSA-r5c5-pr8j-pfp7"},{"ecosystem":"Go","fixed":["0.0.0-20190320223903-b7391e95e576"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/crypto","purl":"pkg:golang/golang.org/x/crypto","source":"GHSA-r5c5-pr8j-pfp7"},{"ecosystem":"Go","fixed":["0.0.0-20190320223903-b7391e95e576"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/crypto","purl":"pkg:golang/golang.org/x/crypto","source":"GO-2022-0209"}],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2019-11839"},"products":["n/a"],"published":"2019-05-09","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":["n/a"]},"summary":"A flaw in the Go salsa20 implementation causes keystream repetition after 256 GiB, leading to loss of confidentiality in encryption or CSPRNG applications.","url":"https://insights.sbomify.com/CVE-2019-11840/"}