{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2018-16884 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2018-16884 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 18 Dec 2018. 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-2018-16884 and fix it if it is affected.\n\nWhat it is: CVE-2018-16884 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 18 Dec 2018. 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-2018-16884 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-2018-16884/ (Markdown: https://insights.sbomify.com/CVE-2018-16884/index.md)","id":"CVE-2018-16884","markdown":"https://insights.sbomify.com/CVE-2018-16884/index.md","name":"CVE-2018-16884","record":{"aliases":["DEBIAN-CVE-2018-16884","GHSA-cxqg-5c27-qx45","SUSE-SU-2019:0236-1","SUSE-SU-2019:0298-1","SUSE-SU-2019:0326-1","SUSE-SU-2019:0356-1","UBUNTU-CVE-2018-16884"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel NFS","requires_auth":"low_privilege","summary":"A malicious container user can trigger a use-after-free in the Linux kernel NFS subsystem, causing a system panic and potential privilege escalation.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_mrg","vendor":"redhat"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H","version":"3.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.","ecosystems":["SUSE:Linux Enterprise Live Patching 12 SP3","SUSE:Linux Enterprise Live Patching 12 SP4","SUSE:Linux Enterprise Live Patching 15","SUSE:Linux Enterprise Server 12 SP1-LTSS","SUSE:Linux Enterprise Server 12 SP2-LTSS","SUSE:Linux Enterprise Server 12-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP2"],"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 kernel:","id":"CVE-2018-16884","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","redhat:enterprise_linux","redhat:enterprise_mrg"],"type":"use_after_free","year":"2018"},"n_packages":49,"n_references":22,"next":{"headline":"Memory corruption in kernel","id":"CVE-2018-16885"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP3","fixed":["10-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP3_Update_10","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_10\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3","source":"SUSE-SU-2019:0298-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP3","fixed":["10-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP3_Update_11","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_11\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3","source":"SUSE-SU-2019:0298-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP3","fixed":["8-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP3_Update_12","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_12\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3","source":"SUSE-SU-2019:0298-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP3","fixed":["11-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP3_Update_8","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_8\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3","source":"SUSE-SU-2019:0298-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP3","fixed":["11-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP3_Update_9","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_9\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3","source":"SUSE-SU-2019:0298-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP4","fixed":["3-2.7.2"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP4_Update_0","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_0\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4","source":"SUSE-SU-2019:0298-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP4","fixed":["2-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP4_Update_1","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_1\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4","source":"SUSE-SU-2019:0298-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["8-22.2"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_0","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_0\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["7-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_1","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_1\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["7-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_2","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_2\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["5-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_3","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_3\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["4-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_4","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_4\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["4-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_5","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_5\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_6","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_6\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["2-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_7","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_7\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:0236-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["11-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_25","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_25\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["11-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_26","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_26\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["9-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_27","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_27\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["8-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_28","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_28\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["8-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_29","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_29\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["7-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_30","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_30\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["5-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_31","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_31\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["5-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_32","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_32\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["11-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_18","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_18\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["11-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_19","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_19\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["10-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_20","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_20\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["9-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_21","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_21\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["9-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_22","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_22\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["6-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_23","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_23\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["5-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_24","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_24\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["4-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_25","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_25\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_26","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_26\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:0356-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["12-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_31","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_31\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["12-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_32","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_32\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["11-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_33","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_33\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["9-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_34","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_34\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["8-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_35","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_35\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["8-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_36","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_36\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["7-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_37","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_37\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12-LTSS","fixed":["5-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12_Update_38","purl":"pkg:rpm/suse/kgraft-patch-SLE12_Update_38\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSS","source":"SUSE-SU-2019:0326-1"}],"prev":{"headline":"Information disclosure in sssd","id":"CVE-2018-16883"},"products":["kernel:"],"published":"2018-12-18","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":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"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":["[UNKNOWN]"]},"summary":"A malicious container user can trigger a use-after-free in the Linux kernel NFS subsystem, causing a system panic and potential privilege escalation.","url":"https://insights.sbomify.com/CVE-2018-16884/"}