{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-3667 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-3667 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 2 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-3667 and fix it if it is affected.\n\nWhat it is: CVE-2021-3667 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 2 Mar 2022. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-3667 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2021-3667/ (Markdown: https://insights.sbomify.com/CVE-2021-3667/index.md)","id":"CVE-2021-3667","markdown":"https://insights.sbomify.com/CVE-2021-3667/index.md","name":"CVE-2021-3667","record":{"aliases":["DEBIAN-CVE-2021-3667","GHSA-q27q-h2jw-qq6c","MGASA-2021-0547","SUSE-SU-2021:3277-1","SUSE-SU-2021:3540-1","SUSE-SU-2021:3586-1","UBUNTU-CVE-2021-3667","openSUSE-SU-2021:1451-1"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Virtualization API","requires_auth":"low_privilege","summary":"A locking flaw in libvirt allows limited-privilege clients to cause a denial of service by preventing access to storage pool APIs.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"ontap_select_deploy_administration_utility","vendor":"netapp"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"libvirt","vendor":"redhat"}],"cvss":{"score":6.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-667","name":"Improper Locking"}],"description":"An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.","ecosystems":["SUSE:Enterprise Storage 6","SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","SUSE:Linux Enterprise Micro 5.0","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Server Applications 15 SP2","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server 15 SP1-BCL","SUSE:Linux Enterprise Server 15 SP1-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP1","SUSE:Linux Enterprise Software Development Kit 12 SP5","openSUSE:Leap 15.2"],"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 libvirt","id":"CVE-2021-3667","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","netapp:ontap_select_deploy_administration_utility","redhat:enterprise_linux","redhat:libvirt"],"type":"denial_of_service","year":"2021"},"n_packages":13,"n_references":6,"next":{"headline":"Denial of service in kernel","id":"CVE-2021-3669"},"packages":[{"ecosystem":"SUSE:Enterprise Storage 6","fixed":["5.1.0-8.29.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Enterprise%20Storage%206","source":"SUSE-SU-2021:3540-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","fixed":["5.1.0-8.29.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS","source":"SUSE-SU-2021:3540-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","fixed":["5.1.0-8.29.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS","source":"SUSE-SU-2021:3540-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.0","fixed":["6.0.0-13.21.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.0","source":"SUSE-SU-2021:3586-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["6.0.0-13.21.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2021:3586-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP2","fixed":["6.0.0-13.21.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2","source":"SUSE-SU-2021:3586-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["5.1.0-13.25.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2021:3277-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP1-BCL","fixed":["5.1.0-8.29.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL","source":"SUSE-SU-2021:3540-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP1-LTSS","fixed":["5.1.0-8.29.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS","source":"SUSE-SU-2021:3540-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["5.1.0-13.25.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2021:3277-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP1","fixed":["5.1.0-8.29.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1","source":"SUSE-SU-2021:3540-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP5","fixed":["5.1.0-13.25.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/suse/libvirt\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5","source":"SUSE-SU-2021:3277-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["6.0.0-lp152.9.15.1"],"introduced":["0"],"last_affected":[],"package":"libvirt","purl":"pkg:rpm/opensuse/libvirt\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:1451-1"}],"prev":{"headline":"Prototype Pollution in fiznool/body-parser-xml","id":"CVE-2021-3666"},"products":["libvirt"],"published":"2022-03-02","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2025-02-13","vendors":["n/a"]},"summary":"A locking flaw in libvirt allows limited-privilege clients to cause a denial of service by preventing access to storage pool APIs.","url":"https://insights.sbomify.com/CVE-2021-3667/"}