{"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-2020-9283 in the wild and no public exploit code.","fix":"Upgrade golang.org/x/crypto to 0.0.0-20200220183623-bac4c82f6975 or later.","what":"CVE-2020-9283 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 20 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-9283 and fix it if it is affected.\n\nWhat it is: CVE-2020-9283 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 20 Feb 2020. 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-2020-9283 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 0.0.0-20200220183623-bac4c82f6975\n- golang.org/x/crypto (Go): affected all versions; fixed in 0.0.0-20200220183623-bac4c82f6975\n- golang.org/x/crypto (Go): affected all versions; fixed in 0.0.0-20200220183623-bac4c82f6975\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-2020-9283/ (Markdown: https://insights.sbomify.com/CVE-2020-9283/index.md)","id":"CVE-2020-9283","markdown":"https://insights.sbomify.com/CVE-2020-9283/index.md","name":"CVE-2020-9283","record":{"aliases":["DEBIAN-CVE-2020-9283","DLA-2453-1","DLA-2455-1","GHSA-ffhg-7mh4-33c4","GO-2020-0012","RHBA-2020:3179","UBUNTU-CVE-2020-9283"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go SSH library","requires_auth":"none","summary":"A remote attacker can cause a panic in SSH signature verification, leading to a denial of service against SSH servers or clients using the affected Go library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"package_ssh","vendor":"golang"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"golang.org/x/crypto before v0.0.0-20200220183623-bac4c82f6975 for Go allows a panic during signature verification in the golang.org/x/crypto/ssh package. A client can attack an SSH server that accepts public keys. Also, a server can attack any SSH client.","ecosystems":["Go","Red Hat:openshift:4.3::el7","Red Hat:openshift:4.3::el8"],"exploits":{"exploitdb":1,"first_seen":"2020-02-24","github_poc":1,"max_poc_stars":6,"metasploit":0,"nuclei":0,"refs":[{"date":"2020-06-02T10:55:37Z","kind":"github_poc","ref":"https://github.com/brompwnie/CVE-2020-9283","stars":6,"title":"Exploit for CVE-2020-9283 based on Go "},{"date":"2020-02-24","kind":"exploitdb","ref":"48121","stars":null,"title":"Go SSH servers 0.0.2 - Denial of Service (PoC)"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Improper Verification of Cryptographic Signature in golang.org/x/crypto","id":"CVE-2020-9283","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"debian:debian_linux","products":["debian:debian_linux"],"type":"denial_of_service","year":"2020"},"n_packages":7,"n_references":6,"next":{"headline":"Other in n/a","id":"CVE-2020-9285"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20200220183623-bac4c82f6975"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/crypto","purl":null,"source":"GHSA-ffhg-7mh4-33c4"},{"ecosystem":"Go","fixed":["0.0.0-20200220183623-bac4c82f6975"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/crypto","purl":"pkg:golang/golang.org/x/crypto","source":"GHSA-ffhg-7mh4-33c4"},{"ecosystem":"Go","fixed":["0.0.0-20200220183623-bac4c82f6975"],"introduced":["0"],"last_affected":[],"package":"golang.org/x/crypto","purl":"pkg:golang/golang.org/x/crypto","source":"GO-2020-0012"},{"ecosystem":"Red Hat:openshift:4.3::el7","fixed":["0:4.3.31-202007250052.p0.git.3329.59998b9.el7"],"introduced":["0"],"last_affected":[],"package":"openshift-clients","purl":"pkg:rpm/redhat/openshift-clients","source":"RHBA-2020:3179"},{"ecosystem":"Red Hat:openshift:4.3::el7","fixed":["0:4.3.31-202007250052.p0.git.3329.59998b9.el7"],"introduced":["0"],"last_affected":[],"package":"openshift-clients-redistributable","purl":"pkg:rpm/redhat/openshift-clients-redistributable","source":"RHBA-2020:3179"},{"ecosystem":"Red Hat:openshift:4.3::el8","fixed":["0:4.3.31-202007250052.p0.git.3329.59998b9.el8"],"introduced":["0"],"last_affected":[],"package":"openshift-clients","purl":"pkg:rpm/redhat/openshift-clients","source":"RHBA-2020:3179"},{"ecosystem":"Red Hat:openshift:4.3::el8","fixed":["0:4.3.31-202007250052.p0.git.3329.59998b9.el8"],"introduced":["0"],"last_affected":[],"package":"openshift-clients-redistributable","purl":"pkg:rpm/redhat/openshift-clients-redistributable","source":"RHBA-2020:3179"}],"prev":{"headline":"Information disclosure in n/a","id":"CVE-2020-9282"},"products":["n/a"],"published":"2020-02-20","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":"CC BY 4.0","name":"Red Hat","prefix":"RHBA"},{"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)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"A remote attacker can cause a panic in SSH signature verification, leading to a denial of service against SSH servers or clients using the affected Go library.","url":"https://insights.sbomify.com/CVE-2020-9283/"}