{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-28049 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-28049 is a medium-severity vulnerability in Debian Debian Linux, published on 4 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-28049 and fix it if it is affected.\n\nWhat it is: CVE-2020-28049 is a medium-severity vulnerability in Debian Debian Linux, published on 4 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-28049 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2020-28049/ (Markdown: https://insights.sbomify.com/CVE-2020-28049/index.md)","id":"CVE-2020-28049","markdown":"https://insights.sbomify.com/CVE-2020-28049/index.md","name":"CVE-2020-28049","record":{"aliases":["DEBIAN-CVE-2020-28049","DLA-2436-1","DSA-4783-1","GHSA-q868-g69p-72cw","MGASA-2020-0412","UBUNTU-CVE-2020-28049","openSUSE-SU-2020:1870-1","openSUSE-SU-2020:1899-1"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux display manager","requires_auth":"low_privilege","summary":"A local attacker can exploit a race condition in SDDM to bypass X server authentication, allowing them to intercept keystrokes and view clipboard contents.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"leap","vendor":"opensuse"},{"product":"sddm","vendor":"sddm_project"}],"cvss":{"score":6.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation.","ecosystems":["SUSE:Package Hub 15 SP2","openSUSE:Leap 15.1","openSUSE:Leap 15.2"],"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":"Race condition in n/a","id":"CVE-2020-28049","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","opensuse:leap"],"type":"race_condition","year":"2020"},"n_packages":3,"n_references":8,"next":{"headline":"Auth bypass in n/a","id":"CVE-2020-28050"},"packages":[{"ecosystem":"SUSE:Package Hub 15 SP2","fixed":["0.18.0-bp152.5.3.1"],"introduced":["0"],"last_affected":[],"package":"sddm","purl":"pkg:rpm/suse/sddm\u0026distro=SUSE%20Package%20Hub%2015%20SP2","source":"openSUSE-SU-2020:1899-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["0.18.0-lp152.5.3.1"],"introduced":["0"],"last_affected":[],"package":"sddm","purl":"pkg:rpm/opensuse/sddm\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:1870-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["0.18.0-lp152.5.3.1"],"introduced":["0"],"last_affected":[],"package":"sddm","purl":"pkg:rpm/opensuse/sddm\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1870-1"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2020-28047"},"products":["n/a"],"published":"2020-11-04","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":"SUSE","prefix":"openSUSE"},{"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-10-15","vendors":["n/a"]},"summary":"A local attacker can exploit a race condition in SDDM to bypass X server authentication, allowing them to intercept keystrokes and view clipboard contents.","url":"https://insights.sbomify.com/CVE-2020-28049/"}