{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-1872 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-1872 is a high-severity use after free vulnerability in Debian Debian Linux, published on 12 Apr 2023. 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-2023-1872 and fix it if it is affected.\n\nWhat it is: CVE-2023-1872 is a high-severity use after free vulnerability in Debian Debian Linux, published on 12 Apr 2023. 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-2023-1872 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-2023-1872/ (Markdown: https://insights.sbomify.com/CVE-2023-1872/index.md)","id":"CVE-2023-1872","markdown":"https://insights.sbomify.com/CVE-2023-1872/index.md","name":"CVE-2023-1872","record":{"aliases":["AZL-26167","DEBIAN-CVE-2023-1872","GHSA-jhw6-rjph-429f","UBUNTU-CVE-2023-1872"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free in the Linux kernel io_uring subsystem allows local attackers to escalate privileges due to a race condition.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Google","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation.\n\nThe io_file_get_fixed function lacks the presence of ctx-\u003euring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered.\n\nWe recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.","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 Linux kernel's io_uring subsystem","id":"CVE-2023-1872","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel"],"type":"use_after_free","year":"2023"},"n_packages":0,"n_references":5,"next":{"headline":"SQLi in Bircard","id":"CVE-2023-1873"},"packages":[],"prev":{"headline":"YourChannel \u003c= 1.2.4 - Cross-Site Request Forgery to Plugin Language Translation Reset","id":"CVE-2023-1871"},"products":["Linux Kernel"],"published":"2023-04-12","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":"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":"2025-02-13","vendors":["Linux"]},"summary":"A use-after-free in the Linux kernel io_uring subsystem allows local attackers to escalate privileges due to a race condition.","url":"https://insights.sbomify.com/CVE-2023-1872/"}