{"answers":{"affected":"It affects 11 products.","exploited":"There is no known exploitation of CVE-2018-18500 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2018-18500 is a critical use after free vulnerability in Canonical Ubuntu Linux, published on 5 Feb 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-18500 and fix it if it is affected.\n\nWhat it is: CVE-2018-18500 is a critical use after free vulnerability in Canonical Ubuntu Linux, published on 5 Feb 2019. 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-2018-18500 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-2018-18500/ (Markdown: https://insights.sbomify.com/CVE-2018-18500/index.md)","id":"CVE-2018-18500","markdown":"https://insights.sbomify.com/CVE-2018-18500/index.md","name":"CVE-2018-18500","record":{"aliases":["DEBIAN-CVE-2018-18500","GHSA-6hxm-h9g7-cg3m","UBUNTU-CVE-2018-18500"],"analysis":{"component_type":"browser","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Firefox and Thunderbird","requires_auth":"none","summary":"A use-after-free flaw in HTML5 stream parsing allows attackers to cause crashes or potentially execute arbitrary code in Firefox and Thunderbird.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mozilla","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"firefox","vendor":"mozilla"},{"product":"firefox_esr","vendor":"mozilla"},{"product":"thunderbird","vendor":"mozilla"},{"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"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird \u003c 60.5, Firefox ESR \u003c 60.5, and Firefox \u003c 65.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2019-04-18","github_poc":1,"max_poc_stars":61,"metasploit":0,"nuclei":0,"refs":[{"date":"2019-04-18T00:26:10Z","kind":"github_poc","ref":"https://github.com/sophoslabs/CVE-2018-18500","stars":61,"title":"PoC for CVE-2018-18500 - Firefox Use-After-Free"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Use after free in n/a","id":"CVE-2018-18500","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","mozilla:firefox","mozilla:firefox_esr","mozilla:thunderbird","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"],"type":"use_after_free","year":"2018"},"n_packages":0,"n_references":17,"next":{"headline":"Memory corruption in Firefox","id":"CVE-2018-18501"},"packages":[],"prev":{"headline":"Information disclosure in Firefox","id":"CVE-2018-18499"},"products":["n/a"],"published":"2019-02-05","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":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"A use-after-free flaw in HTML5 stream parsing allows attackers to cause crashes or potentially execute arbitrary code in Firefox and Thunderbird.","url":"https://insights.sbomify.com/CVE-2018-18500/"}