{"answers":{"affected":"3 open source packages ship an affected version, including pyyaml. It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-1747 in the wild and no public exploit code.","fix":"Upgrade pyyaml to 5.3.1 or later.","what":"CVE-2020-1747 is a critical code injection vulnerability in Fedoraproject Fedora, published on 24 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-1747 and fix it if it is affected.\n\nWhat it is: CVE-2020-1747 is a critical code injection vulnerability in Fedoraproject Fedora, published on 24 Mar 2020. 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-2020-1747 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- pyyaml (PyPI): affected from 5.1; fixed in 5.3.1\n- pyyaml (PyPI): affected from 5.1b7; fixed in 5.3.1\n- pyyaml (PyPI): affected from 5.1b7; fixed in 5.3.1\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-2020-1747/ (Markdown: https://insights.sbomify.com/CVE-2020-1747/index.md)","id":"CVE-2020-1747","markdown":"https://insights.sbomify.com/CVE-2020-1747/index.md","name":"CVE-2020-1747","record":{"aliases":["ALPINE-CVE-2020-1747","AZL-31783","DEBIAN-CVE-2020-1747","GHSA-6757-jp84-gxfx","MGASA-2020-0155","PYSEC-2020-96","SUSE-SU-2020:0959-1","SUSE-SU-2020:1285-1","openSUSE-SU-2020:0507-1","openSUSE-SU-2020:0630-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Python YAML library","requires_auth":"none","summary":"Attackers can execute arbitrary code by providing malicious YAML files to applications using PyYAML's full_load or FullLoader.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"leap","vendor":"opensuse"},{"product":"communications_cloud_native_core_network_function_cloud_native_environment","vendor":"oracle"},{"product":"pyyaml","vendor":"pyyaml"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A vulnerability was discovered in the PyYAML library in versions before 5.3.1, where it is susceptible to arbitrary code execution when it processes untrusted YAML files through the full_load method or with the FullLoader loader. Applications that use the library to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to execute arbitrary code on the system by abusing the python/object/new constructor.","ecosystems":["PyPI","SUSE:Enterprise Storage 5","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise High Availability Extension 12 SP1","SUSE:Linux Enterprise High Availability Extension 12 SP2","SUSE:Linux Enterprise Module for Advanced Systems Management 12","SUSE:Linux Enterprise Module for Basesystem 15 SP1","SUSE:Linux Enterprise Module for Containers 12","SUSE:Linux Enterprise Module for Public Cloud 12","SUSE:Linux Enterprise Module for Python 2 15 SP1","SUSE:Linux Enterprise Point of Sale 12 SP2","SUSE:Linux Enterprise Server 12 SP3-BCL","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server 12 SP4","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 12 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Manager Client Tools 12","SUSE:Manager Proxy 3.2","SUSE:Manager Server 3.2","SUSE:OpenStack Cloud 6-LTSS","SUSE:OpenStack Cloud 7","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud Crowbar 8","openSUSE:Leap 15.1"],"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":"Improper Input Validation in PyYAML","id":"CVE-2020-1747","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"fedoraproject:fedora","products":["fedoraproject:fedora","opensuse:leap"],"type":"code_injection","year":"2020"},"n_packages":29,"n_references":10,"next":{"headline":"Incorrect Authorization in WildFly Elytron","id":"CVE-2020-1748"},"packages":[{"ecosystem":"PyPI","fixed":["5.3.1"],"introduced":["5.1"],"last_affected":[],"package":"pyyaml","purl":"pkg:pypi/pyyaml","source":"PYSEC-2020-96"},{"ecosystem":"PyPI","fixed":["5.3.1"],"introduced":["5.1b7"],"last_affected":[],"package":"pyyaml","purl":null,"source":"GHSA-6757-jp84-gxfx"},{"ecosystem":"PyPI","fixed":["5.3.1"],"introduced":["5.1b7"],"last_affected":[],"package":"pyyaml","purl":"pkg:pypi/pyyaml","source":"GHSA-6757-jp84-gxfx"},{"ecosystem":"SUSE:Enterprise Storage 5","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Enterprise%20Storage%205","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 12 SP1","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP1","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise High Availability Extension 12 SP2","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP2","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Advanced Systems Management 12","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Advanced%20Systems%20Management%2012","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","fixed":["5.1.2-6.6.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1","source":"SUSE-SU-2020:0959-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Containers 12","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Containers%2012","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Public Cloud 12","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2012","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Python 2 15 SP1","fixed":["5.1.2-6.6.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Python%202%2015%20SP1","source":"SUSE-SU-2020:0959-1"},{"ecosystem":"SUSE:Linux Enterprise Point of Sale 12 SP2","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2012%20SP2","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP4","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Manager Client Tools 12","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Manager%20Client%20Tools%2012","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Manager Proxy 3.2","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Manager%20Proxy%203.2","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:Manager Server 3.2","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20Manager%20Server%203.2","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:OpenStack Cloud 6-LTSS","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20OpenStack%20Cloud%206-LTSS","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:OpenStack Cloud 7","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20OpenStack%20Cloud%207","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:OpenStack Cloud 8","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20OpenStack%20Cloud%208","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["5.1.2-26.12.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/suse/python-PyYAML\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2020:1285-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["5.1.2-lp151.2.13.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/opensuse/python-PyYAML\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:0630-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["5.1.2-lp151.2.6.1"],"introduced":["0"],"last_affected":[],"package":"python-PyYAML","purl":"pkg:rpm/opensuse/python-PyYAML\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:0507-1"}],"prev":{"headline":"Exposure of Sensitive Information to an Unauthorized Actor in ansible","id":"CVE-2020-1746"},"products":["PyYAML"],"published":"2020-03-24","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":"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":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2024-08-04","vendors":["Red Hat"]},"summary":"Attackers can execute arbitrary code by providing malicious YAML files to applications using PyYAML's full_load or FullLoader.","url":"https://insights.sbomify.com/CVE-2020-1747/"}