{"answers":{"affected":"It affects 16 products.","exploited":"Yes. Attackers have exploited CVE-2019-5544 in the wild since at least 3 Nov 2021, including in ransomware campaigns.","fix":"Apply the vendor's patch. US federal agencies must fix it by 3 May 2022.","what":"CVE-2019-5544 is a critical memory corruption vulnerability in Fedoraproject Fedora, published on 6 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-2019-5544 and fix it if it is affected.\n\nWhat it is: CVE-2019-5544 is a critical memory corruption vulnerability in Fedoraproject Fedora, published on 6 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2019-5544 in the wild since at least 3 Nov 2021, including in ransomware campaigns.\n\nAffected product: Fedoraproject Fedora. 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-2019-5544/ (Markdown: https://insights.sbomify.com/CVE-2019-5544/index.md)","id":"CVE-2019-5544","markdown":"https://insights.sbomify.com/CVE-2019-5544/index.md","name":"CVE-2019-5544","record":{"aliases":["AZL-36968","AZL-7321","GHSA-4734-5452-r5fh","MGASA-2020-0075","RHSA-2019:4240","RHSA-2020:0199","UBUNTU-CVE-2019-5544","USN-4919-1"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"VMware ESXi","requires_auth":"none","summary":"A heap overwrite vulnerability in OpenSLP allows remote attackers to execute arbitrary code on VMware ESXi and Horizon DaaS appliances.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"vmware","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"openslp","vendor":"openslp"},{"product":"enterprise_linux_desktop","vendor":"redhat"},{"product":"enterprise_linux_for_ibm_z_systems","vendor":"redhat"},{"product":"enterprise_linux_for_ibm_z_systems_eus","vendor":"redhat"},{"product":"enterprise_linux_for_power_big_endian","vendor":"redhat"},{"product":"enterprise_linux_for_power_big_endian_eus","vendor":"redhat"},{"product":"enterprise_linux_for_power_little_endian","vendor":"redhat"},{"product":"enterprise_linux_for_power_little_endian_eus","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"},{"product":"esxi","vendor":"vmware"},{"product":"horizon_daas","vendor":"vmware"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-787","name":"Out-of-bounds Write"}],"description":"OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.","ecosystems":["Red Hat:enterprise_linux:6::client","Red Hat:enterprise_linux:6::computenode","Red Hat:enterprise_linux:6::server","Red Hat:enterprise_linux:6::workstation","Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation"],"exploits":{"exploitdb":0,"first_seen":"2020-12-01","github_poc":2,"max_poc_stars":68,"metasploit":0,"nuclei":1,"refs":[{"date":"2021-02-04T15:15:22Z","kind":"github_poc","ref":"https://github.com/dgh05t/VMware_ESXI_OpenSLP_PoCs","stars":68,"title":"CVE-2020-3992 \u0026 CVE-2019-5544"},{"date":"2020-12-01T13:49:26Z","kind":"github_poc","ref":"https://github.com/HynekPetrak/CVE-2019-5544_CVE-2020-3992","stars":50,"title":"Python / scapy module implementing SRVLOC/SLP protocol and scans for enabled OpenSLP services."},{"date":null,"kind":"nuclei","ref":"network/cves/2019/CVE-2019-5544.yaml","stars":null,"title":"VMware ESXi SLP - Heap Overflow DoS"}],"tier":"exploited"},"has_fix":true,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Known","product":"VMware ESXi and Horizon DaaS","requiredAction":"Apply updates per vendor instructions.","vendorProject":"VMware","vulnerabilityName":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","redhat:enterprise_linux_desktop","redhat:enterprise_linux_for_ibm_z_systems","redhat:enterprise_linux_for_ibm_z_systems_eus","redhat:enterprise_linux_for_power_little_endian","redhat:enterprise_linux_for_power_little_endian_eus","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_eus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","vmware:esxi"],"type":"memory_corruption","year":"2019"},"n_packages":32,"n_references":8,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2019-5546"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp","purl":"pkg:rpm/redhat/openslp","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-debuginfo","purl":"pkg:rpm/redhat/openslp-debuginfo","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-devel","purl":"pkg:rpm/redhat/openslp-devel","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-server","purl":"pkg:rpm/redhat/openslp-server","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp","purl":"pkg:rpm/redhat/openslp","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-debuginfo","purl":"pkg:rpm/redhat/openslp-debuginfo","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-devel","purl":"pkg:rpm/redhat/openslp-devel","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-server","purl":"pkg:rpm/redhat/openslp-server","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp","purl":"pkg:rpm/redhat/openslp","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-debuginfo","purl":"pkg:rpm/redhat/openslp-debuginfo","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-devel","purl":"pkg:rpm/redhat/openslp-devel","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp-server","purl":"pkg:rpm/redhat/openslp-server","source":"RHSA-2020:0199"},{"ecosystem":"Red Hat:enterprise_linux:6::workstation","fixed":["1:2.0.0-4.el6_10"],"introduced":["0"],"last_affected":[],"package":"openslp","purl":"pkg:rpm/redhat/openslp","source":"RHSA-2020:0199"},{"ecosystem":"Red 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Hat:enterprise_linux:7::client","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-debuginfo","purl":"pkg:rpm/redhat/openslp-debuginfo","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-devel","purl":"pkg:rpm/redhat/openslp-devel","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-server","purl":"pkg:rpm/redhat/openslp-server","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp","purl":"pkg:rpm/redhat/openslp","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-debuginfo","purl":"pkg:rpm/redhat/openslp-debuginfo","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-devel","purl":"pkg:rpm/redhat/openslp-devel","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-server","purl":"pkg:rpm/redhat/openslp-server","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp","purl":"pkg:rpm/redhat/openslp","source":"RHSA-2019:4240"},{"ecosystem":"Red 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Hat:enterprise_linux:7::workstation","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-debuginfo","purl":"pkg:rpm/redhat/openslp-debuginfo","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-devel","purl":"pkg:rpm/redhat/openslp-devel","source":"RHSA-2019:4240"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:2.0.0-8.el7_7"],"introduced":["0"],"last_affected":[],"package":"openslp-server","purl":"pkg:rpm/redhat/openslp-server","source":"RHSA-2019:4240"}],"prev":{"headline":"Privilege escalation in VMware Horizon Client for Windows","id":"CVE-2019-5543"},"products":["ESXi and Horizon DaaS"],"published":"2019-12-06","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":9.6,"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":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["n/a"]},"summary":"A heap overwrite vulnerability in OpenSLP allows remote attackers to execute arbitrary code on VMware ESXi and Horizon DaaS appliances.","url":"https://insights.sbomify.com/CVE-2019-5544/"}