{"answers":{"affected":"It affects 7 products.","exploited":"There is no known exploitation of CVE-2018-1120 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2018-1120 is a low-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 20 Jun 2018. 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-2018-1120 and fix it if it is affected.\n\nWhat it is: CVE-2018-1120 is a low-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 20 Jun 2018. 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-2018-1120 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-2018-1120/ (Markdown: https://insights.sbomify.com/CVE-2018-1120/index.md)","id":"CVE-2018-1120","markdown":"https://insights.sbomify.com/CVE-2018-1120/index.md","name":"CVE-2018-1120","record":{"aliases":["DEBIAN-CVE-2018-1120","GHSA-gq4w-28gq-c8cj","RHSA-2020:3804","RHSA-2020:3810","UBUNTU-CVE-2018-1120"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"An attacker can cause system utilities to block indefinitely by mapping a FUSE-backed file onto process memory, leading to denial of service.","user_interaction":"required","vuln_class":"denial_of_service"},"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_desktop","vendor":"redhat"},{"product":"enterprise_linux_server","vendor":"redhat"},{"product":"enterprise_linux_workstation","vendor":"redhat"},{"product":"virtualization_host","vendor":"redhat"}],"cvss":{"score":2.8,"severity":"low","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer"},{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"A flaw was found affecting the Linux kernel before version 4.17. By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which makes a read() call to the /proc/\u003cpid\u003e/cmdline (or /proc/\u003cpid\u003e/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks).","ecosystems":["Red Hat:enterprise_mrg:2:server:el6","Red Hat:rhel_aus:7.4::server","Red Hat:rhel_e4s:7.4::server","Red Hat:rhel_tus:7.4::server"],"exploits":{"exploitdb":2,"first_seen":"2018-05-30","github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[{"date":"2018-05-30","kind":"exploitdb","ref":"44806","stars":null,"title":"Procps-ng - Multiple Vulnerabilities"},{"date":"2018-05-30","kind":"exploitdb","ref":"44806","stars":null,"title":"Procps-ng - Multiple Vulnerabilities"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Denial of service in kernel","id":"CVE-2018-1120","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_desktop","redhat:enterprise_linux_server","redhat:enterprise_linux_workstation","redhat:virtualization_host"],"type":"denial_of_service","year":"2018"},"n_packages":68,"n_references":15,"next":{"headline":"Race condition in procps-ng, procps","id":"CVE-2018-1121"},"packages":[{"ecosystem":"Red Hat:enterprise_mrg:2:server:el6","fixed":["1:3.10.0-693.76.1.rt56.676.el6rt"],"introduced":["0"],"last_affected":[],"package":"kernel-rt","purl":"pkg:rpm/redhat/kernel-rt","source":"RHSA-2020:3810"},{"ecosystem":"Red Hat:enterprise_mrg:2:server:el6","fixed":["1:3.10.0-693.76.1.rt56.676.el6rt"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug","purl":"pkg:rpm/redhat/kernel-rt-debug","source":"RHSA-2020:3810"},{"ecosystem":"Red Hat:enterprise_mrg:2:server:el6","fixed":["1:3.10.0-693.76.1.rt56.676.el6rt"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-debug-debuginfo","source":"RHSA-2020:3810"},{"ecosystem":"Red Hat:enterprise_mrg:2:server:el6","fixed":["1:3.10.0-693.76.1.rt56.676.el6rt"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debug-devel","purl":"pkg:rpm/redhat/kernel-rt-debug-devel","source":"RHSA-2020:3810"},{"ecosystem":"Red Hat:enterprise_mrg:2:server:el6","fixed":["1:3.10.0-693.76.1.rt56.676.el6rt"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debuginfo","purl":"pkg:rpm/redhat/kernel-rt-debuginfo","source":"RHSA-2020:3810"},{"ecosystem":"Red Hat:enterprise_mrg:2:server:el6","fixed":["1:3.10.0-693.76.1.rt56.676.el6rt"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-rt-debuginfo-common-x86_64","source":"RHSA-2020:3810"},{"ecosystem":"Red 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Hat:rhel_e4s:7.4::server","fixed":["0:3.10.0-693.76.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-bootwrapper","purl":"pkg:rpm/redhat/kernel-bootwrapper","source":"RHSA-2020:3804"},{"ecosystem":"Red Hat:rhel_e4s:7.4::server","fixed":["0:3.10.0-693.76.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2020:3804"},{"ecosystem":"Red Hat:rhel_e4s:7.4::server","fixed":["0:3.10.0-693.76.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2020:3804"},{"ecosystem":"Red Hat:rhel_e4s:7.4::server","fixed":["0:3.10.0-693.76.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2020:3804"},{"ecosystem":"Red Hat:rhel_e4s:7.4::server","fixed":["0:3.10.0-693.76.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2020:3804"},{"ecosystem":"Red Hat:rhel_e4s:7.4::server","fixed":["0:3.10.0-693.76.1.el7"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-ppc64le","purl":"pkg:rpm/redhat/kernel-debuginfo-common-ppc64le","source":"RHSA-2020:3804"}],"prev":{"headline":"Information disclosure in vhost","id":"CVE-2018-1118"},"products":["kernel"],"published":"2018-06-20","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":"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)"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["[UNKNOWN]"]},"summary":"An attacker can cause system utilities to block indefinitely by mapping a FUSE-backed file onto process memory, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2018-1120/"}