{"answers":{"affected":"3 open source packages ship an affected version, including openssl. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-20997 in the wild and no public exploit code.","fix":"Upgrade openssl to 0.10.9 or later.","what":"CVE-2018-20997 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-2018-20997 and fix it if it is affected.\n\nWhat it is: CVE-2018-20997 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-2018-20997 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- openssl (crates.io): affected from 0.10.8; fixed in 0.10.9\n- openssl (crates.io): affected from 0.10.8; fixed in 0.10.9\n- openssl (crates.io): affected from 0.10.8; fixed in 0.10.9\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-2018-20997/ (Markdown: https://insights.sbomify.com/CVE-2018-20997/index.md)","id":"CVE-2018-20997","markdown":"https://insights.sbomify.com/CVE-2018-20997/index.md","name":"CVE-2018-20997","record":{"aliases":["GHSA-xjxc-vfw2-cg96","RUSTSEC-2018-0010"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust OpenSSL crate","requires_auth":"none","summary":"A use-after-free vulnerability in the Rust openssl crate allows attackers to potentially execute arbitrary code or cause a denial of service during CMS signing operations.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"rust-openssl","vendor":"rust-openssl_project"}],"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":"An issue was discovered in the openssl crate before 0.10.9 for Rust. A use-after-free occurs in CMS Signing.","ecosystems":["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":"Use after free in openssl","id":"CVE-2018-20997","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"use_after_free","year":"2018"},"n_packages":3,"n_references":1,"next":{"headline":"Potential memory corruption in arrayfire","id":"CVE-2018-20998"},"packages":[{"ecosystem":"crates.io","fixed":["0.10.9"],"introduced":["0.10.8"],"last_affected":[],"package":"openssl","purl":null,"source":"GHSA-xjxc-vfw2-cg96"},{"ecosystem":"crates.io","fixed":["0.10.9"],"introduced":["0.10.8"],"last_affected":[],"package":"openssl","purl":"pkg:cargo/openssl","source":"GHSA-xjxc-vfw2-cg96"},{"ecosystem":"crates.io","fixed":["0.10.9"],"introduced":["0.10.8"],"last_affected":[],"package":"openssl","purl":"pkg:cargo/openssl","source":"RUSTSEC-2018-0010"}],"prev":{"headline":"Double free in crossbeam","id":"CVE-2018-20996"},"products":["n/a"],"published":"2019-08-26","related":[{"cvss_score":8.3,"headline":"rust-openssl: Unchecked callback length in PSK/cookie trampolines leaks adjacent memory to peer","id":"CVE-2026-41898","kev_date_added":null,"published":"2026-04-24"},{"cvss_score":8.1,"headline":"rust-openssl: MdCtxRef::digest_final() writes past caller buffer with no length check","id":"CVE-2026-41681","kev_date_added":null,"published":"2026-04-24"},{"cvss_score":8.1,"headline":"Improper Certificate Validation in openssl","id":"CVE-2016-10931","kev_date_added":null,"published":"2019-08-26"},{"cvss_score":7.2,"headline":"rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1","id":"CVE-2026-41676","kev_date_added":null,"published":"2026-04-24"},{"cvss_score":7.2,"headline":"rust-openssl: Incorrect bounds assertion in aes key wrap","id":"CVE-2026-41678","kev_date_added":null,"published":"2026-04-24"},{"cvss_score":1.7,"headline":"rust-openssl: Out-of-bounds read in PEM password callback when user callback returns an oversized length","id":"CVE-2026-41677","kev_date_added":null,"published":"2026-04-24"}],"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":"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 use-after-free vulnerability in the Rust openssl crate allows attackers to potentially execute arbitrary code or cause a denial of service during CMS signing operations.","url":"https://insights.sbomify.com/CVE-2018-20997/"}