{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2018-18559 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2018-18559 is a high-severity use after free vulnerability in Linux kernel, published on 22 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-18559 and fix it if it is affected.\n\nWhat it is: CVE-2018-18559 is a high-severity use after free vulnerability in Linux kernel, published on 22 Oct 2018. 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-2018-18559 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2018-18559/ (Markdown: https://insights.sbomify.com/CVE-2018-18559/index.md)","id":"CVE-2018-18559","markdown":"https://insights.sbomify.com/CVE-2018-18559/index.md","name":"CVE-2018-18559","record":{"aliases":["DEBIAN-CVE-2018-18559","GHSA-8w88-57v8-p48h","RHSA-2019:0188","UBUNTU-CVE-2018-18559"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A race condition in the Linux kernel AF_PACKET socket handling allows attackers to achieve program counter control via use-after-free.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"linux_kernel","vendor":"linux"},{"product":"enterprise_linux_desktop","vendor":"redhat"},{"product":"enterprise_linux_server","vendor":"redhat"},{"product":"enterprise_linux_server_aus","vendor":"redhat"},{"product":"enterprise_linux_server_eus","vendor":"redhat"},{"product":"enterprise_linux_server_tus","vendor":"redhat"},{"product":"enterprise_linux_workstation","vendor":"redhat"},{"product":"openshift_container_platform","vendor":"redhat"},{"product":"virtualization_host","vendor":"redhat"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"},{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.","ecosystems":["Red Hat:rhel_extras_rt:7"],"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-2018-18559","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel","redhat:enterprise_linux_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","redhat:openshift_container_platform","redhat:virtualization_host"],"type":"use_after_free","year":"2018"},"n_packages":17,"n_references":9,"next":{"headline":"Command injection in n/a","id":"CVE-2018-18561"},"packages":[{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt","purl":"pkg:rpm/redhat/kernel-rt","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug","purl":"pkg:rpm/redhat/kernel-rt-debug","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-debug-debuginfo","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-devel","purl":"pkg:rpm/redhat/kernel-rt-debug-devel","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-kvm","purl":"pkg:rpm/redhat/kernel-rt-debug-kvm","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-kvm-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-debug-kvm-debuginfo","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-debuginfo","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-devel","purl":"pkg:rpm/redhat/kernel-rt-devel","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-doc","purl":"pkg:rpm/redhat/kernel-rt-doc","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-kvm","purl":"pkg:rpm/redhat/kernel-rt-kvm","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-kvm-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-kvm-debuginfo","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace","purl":"pkg:rpm/redhat/kernel-rt-trace","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-trace-debuginfo","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace-devel","purl":"pkg:rpm/redhat/kernel-rt-trace-devel","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace-kvm","purl":"pkg:rpm/redhat/kernel-rt-trace-kvm","source":"RHSA-2019:0188"},{"ecosystem":"Red Hat:rhel_extras_rt:7","fixed":["0:3.10.0-957.5.1.rt56.916.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-trace-kvm-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-trace-kvm-debuginfo","source":"RHSA-2019:0188"}],"prev":{"headline":"Security feature bypass in n/a","id":"CVE-2018-18558"},"products":["n/a"],"published":"2018-10-22","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"2024-08-05","vendors":["n/a"]},"summary":"A race condition in the Linux kernel AF_PACKET socket handling allows attackers to achieve program counter control via use-after-free.","url":"https://insights.sbomify.com/CVE-2018-18559/"}