{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2018-11412 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2018-11412 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 24 May 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-2018-11412 and fix it if it is affected.\n\nWhat it is: CVE-2018-11412 is a medium-severity use after free vulnerability in Canonical Ubuntu Linux, published on 24 May 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-2018-11412 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-2018-11412/ (Markdown: https://insights.sbomify.com/CVE-2018-11412/index.md)","id":"CVE-2018-11412","markdown":"https://insights.sbomify.com/CVE-2018-11412/index.md","name":"CVE-2018-11412","record":{"aliases":["DEBIAN-CVE-2018-11412","GHSA-p2xr-7hvv-jq75","UBUNTU-CVE-2018-11412"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel ext4","requires_auth":"none","summary":"A use-after-free vulnerability in the Linux kernel ext4 filesystem allows local attackers to execute arbitrary code or escalate privileges via a crafted filesystem image.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2018-06-05","github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[{"date":"2018-06-05","kind":"exploitdb","ref":"44832","stars":null,"title":"Linux Kernel \u003c 4.16.11 - 'ext4_read_inline_data()' Memory Corruption"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Use after free in n/a","id":"CVE-2018-11412","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","linux:linux_kernel"],"type":"use_after_free","year":"2018"},"n_packages":0,"n_references":8,"next":{"headline":"Path traversal in n/a","id":"CVE-2018-11413"},"packages":[],"prev":{"headline":"Business logic in n/a","id":"CVE-2018-11411"},"products":["n/a"],"published":"2018-05-24","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)"},{"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":["n/a"]},"summary":"A use-after-free vulnerability in the Linux kernel ext4 filesystem allows local attackers to execute arbitrary code or escalate privileges via a crafted filesystem image.","url":"https://insights.sbomify.com/CVE-2018-11412/"}