{"answers":{"affected":"3 open source packages ship an affected version, including smallvec. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-20991 in the wild and no public exploit code.","fix":"Upgrade smallvec to a fixed version for your release line: 0.3.4, 0.4.5, 0.5.1 or 0.6.3.","what":"CVE-2018-20991 is a critical use after free vulnerability in n/a, published on 26 Aug 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-2018-20991 and fix it if it is affected.\n\nWhat it is: CVE-2018-20991 is a critical use after free vulnerability in n/a, published on 26 Aug 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-2018-20991 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- smallvec (crates.io): affected from 0.3.2; fixed in 0.3.4, 0.4.5, 0.5.1, 0.6.3\n- smallvec (crates.io): affected from 0.3.2; fixed in 0.6.3\n- smallvec (crates.io): affected from 0.3.2; fixed in 0.6.3\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-2018-20991/ (Markdown: https://insights.sbomify.com/CVE-2018-20991/index.md)","id":"CVE-2018-20991","markdown":"https://insights.sbomify.com/CVE-2018-20991/index.md","name":"CVE-2018-20991","record":{"aliases":["GHSA-rxr4-x558-x7hw","RUSTSEC-2018-0003","SUSE-SU-2021:1310-1","UBUNTU-CVE-2018-20991"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust smallvec crate","requires_auth":"none","summary":"A double free vulnerability in the smallvec Rust crate allows attackers to cause denial of service or potentially execute arbitrary code.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"smallvec","vendor":"servo"}],"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-415","name":"Double Free"}],"description":"An issue was discovered in the smallvec crate before 0.6.3 for Rust. The Iterator implementation mishandles destructors, leading to a double free.","ecosystems":["SUSE:Linux Enterprise Module for Package Hub 15 SP2","crates.io"],"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":"Double free in smallvec","id":"CVE-2018-20991","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"use_after_free","year":"2018"},"n_packages":4,"n_references":1,"next":{"headline":"Uninitialized memory exposure in claxon","id":"CVE-2018-20992"},"packages":[{"ecosystem":"crates.io","fixed":["0.3.4","0.4.5","0.5.1","0.6.3"],"introduced":["0.3.2","0.4.0-0","0.5.0-0","0.6.0-0"],"last_affected":[],"package":"smallvec","purl":"pkg:cargo/smallvec","source":"RUSTSEC-2018-0003"},{"ecosystem":"crates.io","fixed":["0.6.3"],"introduced":["0.3.2"],"last_affected":[],"package":"smallvec","purl":null,"source":"GHSA-rxr4-x558-x7hw"},{"ecosystem":"crates.io","fixed":["0.6.3"],"introduced":["0.3.2"],"last_affected":[],"package":"smallvec","purl":"pkg:cargo/smallvec","source":"GHSA-rxr4-x558-x7hw"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP2","fixed":["2.42.9-3.6.1"],"introduced":["0"],"last_affected":[],"package":"librsvg","purl":"pkg:rpm/suse/librsvg\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2","source":"SUSE-SU-2021:1310-1"}],"prev":{"headline":"Arbitrary file overwrite in tar-rs","id":"CVE-2018-20990"},"products":["n/a"],"published":"2019-08-26","related":[{"cvss_score":9.8,"headline":"Buffer overflow in SmallVec::insert_many","id":"CVE-2021-25900","kev_date_added":null,"published":"2021-01-22"},{"cvss_score":9.8,"headline":"Double free in smallvec","id":"CVE-2019-15551","kev_date_added":null,"published":"2019-08-26"},{"cvss_score":9.8,"headline":"Memory corruption in smallvec","id":"CVE-2019-15554","kev_date_added":null,"published":"2019-08-26"},{"cvss_score":7.5,"headline":"Use of Uninitialized Resource in smallvec","id":"CVE-2018-25023","kev_date_added":null,"published":"2021-12-26"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"},{"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":["n/a"]},"summary":"A double free vulnerability in the smallvec Rust crate allows attackers to cause denial of service or potentially execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2018-20991/"}