{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2020-8648 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-8648 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 6 Feb 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-2020-8648 and fix it if it is affected.\n\nWhat it is: CVE-2020-8648 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 6 Feb 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-2020-8648 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu 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-2020-8648/ (Markdown: https://insights.sbomify.com/CVE-2020-8648/index.md)","id":"CVE-2020-8648","markdown":"https://insights.sbomify.com/CVE-2020-8648/index.md","name":"CVE-2020-8648","record":{"aliases":["DEBIAN-CVE-2020-8648","GHSA-9hr4-45xh-6xvh","UBUNTU-CVE-2020-8648"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free flaw in the Linux kernel TTY driver allows local attackers to execute arbitrary code or escalate privileges.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"brocade_fabric_operating_system_firmware","vendor":"broadcom"},{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"},{"product":"active_iq_unified_manager","vendor":"netapp"},{"product":"cloud_backup","vendor":"netapp"},{"product":"hci_baseboard_management_controller","vendor":"netapp"},{"product":"solidfire_baseboard_management_controller","vendor":"netapp"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":7.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.","ecosystems":[],"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":"Use after free in n/a","id":"CVE-2020-8648","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","netapp:active_iq_unified_manager","netapp:cloud_backup","opensuse:leap"],"type":"use_after_free","year":"2020"},"n_packages":0,"n_references":11,"next":{"headline":"Use after free in n/a","id":"CVE-2020-8649"},"packages":[],"prev":{"headline":"Use after free in n/a","id":"CVE-2020-8647"},"products":["n/a"],"published":"2020-02-06","related":[{"cvss_score":8.8,"headline":"Path traversal in https://github.com/curl/curl","id":"CVE-2023-27534","kev_date_added":null,"published":"2023-03-30"},{"cvss_score":7.8,"headline":"Privilege escalation in kernel","id":"CVE-2021-4197","kev_date_added":null,"published":"2022-03-23"},{"cvss_score":7.7,"headline":"Auth bypass in https://github.com/curl/curl","id":"CVE-2023-27538","kev_date_added":null,"published":"2023-03-30"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2021-27218","kev_date_added":null,"published":"2021-02-15"},{"cvss_score":7.5,"headline":"Integer overflow in n/a","id":"CVE-2021-27219","kev_date_added":null,"published":"2021-02-15"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2019-19044","kev_date_added":null,"published":"2019-11-18"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2019-19052","kev_date_added":null,"published":"2019-11-18"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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 use-after-free flaw in the Linux kernel TTY driver allows local attackers to execute arbitrary code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2020-8648/"}