{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2017-7539 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2017-7539 is a medium-severity denial of service vulnerability in Qemu Qemu, published on 26 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-7539 and fix it if it is affected.\n\nWhat it is: CVE-2017-7539 is a medium-severity denial of service vulnerability in Qemu Qemu, published on 26 Jul 2018. 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-2017-7539 in the wild and no public exploit code.\n\nAffected product: Qemu Qemu. 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-2017-7539/ (Markdown: https://insights.sbomify.com/CVE-2017-7539/index.md)","id":"CVE-2017-7539","markdown":"https://insights.sbomify.com/CVE-2017-7539/index.md","name":"CVE-2017-7539","record":{"aliases":["GHSA-8vvg-hj6f-q4wj","RHSA-2017:2628"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"QEMU NBD server","requires_auth":"none","summary":"A remote attacker can crash the QEMU NBD server by sending unexpected data during connection negotiation, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"qemu","vendor":"qemu"},{"product":"openstack","vendor":"redhat"},{"product":"virtualization","vendor":"redhat"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"},{"id":"CWE-617","name":"Reachable Assertion"}],"description":"An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.","ecosystems":["Red Hat:enterprise_linux:7::hypervisor"],"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":"Denial of service in Qemu","id":"CVE-2017-7539","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"qemu:qemu","products":["qemu:qemu","redhat:openstack","redhat:virtualization"],"type":"denial_of_service","year":"2017"},"n_packages":5,"n_references":12,"next":{"headline":"Safemode Gem Has Incomplete List of Disallowed Inputs","id":"CVE-2017-7540"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::hypervisor","fixed":["10:2.9.0-16.el7_4.5"],"introduced":["0"],"last_affected":[],"package":"qemu-img-rhev","purl":"pkg:rpm/redhat/qemu-img-rhev","source":"RHSA-2017:2628"},{"ecosystem":"Red Hat:enterprise_linux:7::hypervisor","fixed":["10:2.9.0-16.el7_4.5"],"introduced":["0"],"last_affected":[],"package":"qemu-kvm-common-rhev","purl":"pkg:rpm/redhat/qemu-kvm-common-rhev","source":"RHSA-2017:2628"},{"ecosystem":"Red Hat:enterprise_linux:7::hypervisor","fixed":["10:2.9.0-16.el7_4.5"],"introduced":["0"],"last_affected":[],"package":"qemu-kvm-rhev","purl":"pkg:rpm/redhat/qemu-kvm-rhev","source":"RHSA-2017:2628"},{"ecosystem":"Red Hat:enterprise_linux:7::hypervisor","fixed":["10:2.9.0-16.el7_4.5"],"introduced":["0"],"last_affected":[],"package":"qemu-kvm-rhev-debuginfo","purl":"pkg:rpm/redhat/qemu-kvm-rhev-debuginfo","source":"RHSA-2017:2628"},{"ecosystem":"Red Hat:enterprise_linux:7::hypervisor","fixed":["10:2.9.0-16.el7_4.5"],"introduced":["0"],"last_affected":[],"package":"qemu-kvm-tools-rhev","purl":"pkg:rpm/redhat/qemu-kvm-tools-rhev","source":"RHSA-2017:2628"}],"prev":{"headline":"Cross-site scripting in Satellite","id":"CVE-2017-7538"},"products":["Qemu"],"published":"2018-07-26","related":[{"cvss_score":10,"headline":"Null dereference in n/a","id":"CVE-2022-36648","kev_date_added":null,"published":"2023-08-22"},{"cvss_score":10,"headline":"Race condition in n/a","id":"CVE-2015-8556","kev_date_added":null,"published":"2017-03-24"},{"cvss_score":9.9,"headline":"Use after free in n/a","id":"CVE-2009-3616","kev_date_added":null,"published":"2009-10-23"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2019-12928","kev_date_added":null,"published":"2019-06-24"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2019-12929","kev_date_added":null,"published":"2019-06-24"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2018-20815","kev_date_added":null,"published":"2019-05-31"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2017-8380","kev_date_added":null,"published":"2017-08-28"}],"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":"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":["QEMU"]},"summary":"A remote attacker can crash the QEMU NBD server by sending unexpected data during connection negotiation, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2017-7539/"}