{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2018-16888 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-16888 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 14 Jan 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-16888 and fix it if it is affected.\n\nWhat it is: CVE-2018-16888 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 14 Jan 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2018-16888 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-2018-16888/ (Markdown: https://insights.sbomify.com/CVE-2018-16888/index.md)","id":"CVE-2018-16888","markdown":"https://insights.sbomify.com/CVE-2018-16888/index.md","name":"CVE-2018-16888","record":{"aliases":["DEBIAN-CVE-2018-16888","GHSA-34mm-3fgq-qjxq","UBUNTU-CVE-2018-16888"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"systemd init system","requires_auth":"low_privilege","summary":"A local attacker can trick systemd into killing privileged processes by manipulating PID files of unprivileged services, leading to privilege escalation or denial of service.","user_interaction":"required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"active_iq_performance_analytics_services","vendor":"netapp"},{"product":"element_software","vendor":"netapp"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"systemd","vendor":"systemd_project"}],"cvss":{"score":4.4,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-269","name":"Improper Privilege Management"},{"id":"CWE-250","name":"Execution with Unnecessary Privileges"}],"description":"It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.","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":"Privilege escalation in systemd","id":"CVE-2018-16888","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","netapp:element_software","redhat:enterprise_linux","systemd_project:systemd"],"type":"privilege_escalation","year":"2018"},"n_packages":0,"n_references":5,"next":{"headline":"Information disclosure in ceph","id":"CVE-2018-16889"},"packages":[],"prev":{"headline":"katello Cross-site Scripting vulnerability","id":"CVE-2018-16887"},"products":["systemd"],"published":"2019-01-14","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"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":"2024-08-05","vendors":["The systemd Project"]},"summary":"A local attacker can trick systemd into killing privileged processes by manipulating PID files of unprivileged services, leading to privilege escalation or denial of service.","url":"https://insights.sbomify.com/CVE-2018-16888/"}