{"answers":{"affected":"2 open source packages ship an affected version, including org.yaml:snakeyaml. It affects 4 products.","exploited":"There is no known exploitation of CVE-2017-18640 in the wild and no public exploit code.","fix":"Upgrade org.yaml:snakeyaml to 1.26 or later.","what":"CVE-2017-18640 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 12 Dec 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-2017-18640 and fix it if it is affected.\n\nWhat it is: CVE-2017-18640 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 12 Dec 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-2017-18640 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.yaml:snakeyaml (Maven): affected all versions; fixed in 1.26\n- org.yaml:snakeyaml (Maven): affected all versions; fixed in 1.26\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-2017-18640/ (Markdown: https://insights.sbomify.com/CVE-2017-18640/index.md)","id":"CVE-2017-18640","markdown":"https://insights.sbomify.com/CVE-2017-18640/index.md","name":"CVE-2017-18640","record":{"aliases":["ALSA-2020:4807","CLEANSTART-2026-CU41868","DEBIAN-CVE-2017-18640","GHSA-rvwf-54qp-4r6v","RHSA-2020:4807","RLSA-2020:4807","ROOT-APP-MAVEN-CVE-2017-18640","SUSE-SU-2021:1876-1","SUSE-SU-2021:1978-1","SUSE-SU-2021:1979-1","UBUNTU-CVE-2017-18640","USN-7368-1","openSUSE-SU-2021:0855-1","openSUSE-SU-2021:1876-1","openSUSE-SU-2024:11391-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Java YAML library","requires_auth":"none","summary":"Attackers can cause denial of service in applications using SnakeYAML by exploiting entity expansion during load operations.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"peoplesoft_enterprise_pt_peopletools","vendor":"oracle"},{"product":"quarkus","vendor":"quarkus"},{"product":"snakeyaml","vendor":"snakeyaml_project"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-776","name":"Improper Restriction of Recursive Entity References in DTDs"}],"description":"The Alias feature in SnakeYAML before 1.26 allows entity expansion during a load operation, a related issue to CVE-2003-1564.","ecosystems":["AlmaLinux:8","Maven","Red Hat:enterprise_linux:8::appstream","Rocky Linux:8","SUSE:Linux Enterprise Module for Development Tools 15 SP2","SUSE:Linux Enterprise Module for Development Tools 15 SP3","SUSE:Manager Server Module 4.0","SUSE:Manager Server Module 4.1","SUSE:Manager Server Module 4.2","openSUSE:Leap 15.2","openSUSE:Leap 15.3","openSUSE:Tumbleweed"],"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":"SnakeYAML Entity Expansion during load operation","id":"CVE-2017-18640","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"fedoraproject:fedora","products":["fedoraproject:fedora"],"type":"denial_of_service","year":"2017"},"n_packages":13,"n_references":59,"next":{"headline":"Supply chain in n/a","id":"CVE-2017-18641"},"packages":[{"ecosystem":"Maven","fixed":["1.26"],"introduced":["0"],"last_affected":[],"package":"org.yaml:snakeyaml","purl":null,"source":"GHSA-rvwf-54qp-4r6v"},{"ecosystem":"Maven","fixed":["1.26"],"introduced":["0"],"last_affected":[],"package":"org.yaml:snakeyaml","purl":"pkg:maven/org.yaml/snakeyaml","source":"GHSA-rvwf-54qp-4r6v"},{"ecosystem":"AlmaLinux:8","fixed":["0.12.0-6.el8"],"introduced":["0"],"last_affected":[],"package":"prometheus-jmx-exporter","purl":"pkg:rpm/almalinux/prometheus-jmx-exporter","source":"ALSA-2020:4807"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.12.0-6.el8"],"introduced":["0"],"last_affected":[],"package":"prometheus-jmx-exporter","purl":"pkg:rpm/redhat/prometheus-jmx-exporter","source":"RHSA-2020:4807"},{"ecosystem":"Rocky Linux:8","fixed":["0:0.12.0-6.el8"],"introduced":["0"],"last_affected":[],"package":"prometheus-jmx-exporter","purl":"pkg:rpm/rocky-linux/prometheus-jmx-exporter?distro=rocky-linux-8-4-x86-64-legacy\u0026epoch=0","source":"RLSA-2020:4807"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP2","fixed":["1.28-3.5.1"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/suse/snakeyaml\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP2","source":"SUSE-SU-2021:1876-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Development Tools 15 SP3","fixed":["1.28-3.5.1"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/suse/snakeyaml\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP3","source":"SUSE-SU-2021:1876-1"},{"ecosystem":"SUSE:Manager Server Module 4.0","fixed":["1.28-12.3.1"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/suse/snakeyaml\u0026distro=SUSE%20Manager%20Server%20Module%204.0","source":"SUSE-SU-2021:1978-1"},{"ecosystem":"SUSE:Manager Server Module 4.1","fixed":["1.28-12.3.1"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/suse/snakeyaml\u0026distro=SUSE%20Manager%20Server%20Module%204.1","source":"SUSE-SU-2021:1979-1"},{"ecosystem":"SUSE:Manager Server Module 4.2","fixed":["1.28-3.5.1"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/suse/snakeyaml\u0026distro=SUSE%20Manager%20Server%20Module%204.2","source":"SUSE-SU-2021:1876-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["1.28-lp152.2.3.1"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/opensuse/snakeyaml\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0855-1"},{"ecosystem":"openSUSE:Leap 15.3","fixed":["1.28-3.5.1"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/opensuse/snakeyaml\u0026distro=openSUSE%20Leap%2015.3","source":"openSUSE-SU-2021:1876-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.28-2.2"],"introduced":["0"],"last_affected":[],"package":"snakeyaml","purl":"pkg:rpm/opensuse/snakeyaml\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:11391-1"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2017-18639"},"products":["n/a"],"published":"2019-12-12","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":"Attackers can cause denial of service in applications using SnakeYAML by exploiting entity expansion during load operations.","url":"https://insights.sbomify.com/CVE-2017-18640/"}