{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2021-33910 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2021-33910 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 20 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-33910 and fix it if it is affected.\n\nWhat it is: CVE-2021-33910 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 20 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-33910 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-2021-33910/ (Markdown: https://insights.sbomify.com/CVE-2021-33910/index.md)","id":"CVE-2021-33910","markdown":"https://insights.sbomify.com/CVE-2021-33910/index.md","name":"CVE-2021-33910","record":{"aliases":["CLSA-2021-1635459232","DEBIAN-CVE-2021-33910","DLA-2715-1","DSA-4942-1","GHSA-5337-wcgc-wcvp","OESA-2021-1271","RHSA-2021:2717","RHSA-2021:2721","RHSA-2021:2724","RLSA-2021:2717","SUSE-SU-2021:2404-1","SUSE-SU-2021:2405-1","SUSE-SU-2021:2410-1","SUSE-SU-2021:2423-1","SUSE-SU-2021:3348-1","SUSE-SU-2021:3611-1","UBUNTU-CVE-2021-33910","openSUSE-SU-2021:1082-1","openSUSE-SU-2021:1370-1","openSUSE-SU-2021:2404-1","openSUSE-SU-2021:2410-1","openSUSE-SU-2021:3348-1","openSUSE-SU-2024:11679-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"systemd unit name parser","requires_auth":"low_privilege","summary":"A local attacker can crash the operating system by triggering excessive memory allocation in systemd's unit name parser.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"hci_management_node","vendor":"netapp"},{"product":"solidfire","vendor":"netapp"},{"product":"systemd","vendor":"systemd_project"}],"cvss":{"score":5.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.","ecosystems":["Red Hat:enterprise_linux:8::baseos","Red Hat:rhel_eus:8.1::baseos","Red Hat:rhel_eus:8.2::baseos","Rocky Linux:8","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Basesystem 15 SP3","SUSE:Linux Enterprise Server 12 SP2-BCL","SUSE:Linux Enterprise Server 12 SP3-BCL","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server 12 SP4-LTSS","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:Linux Enterprise Software Development Kit 12 SP5","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.2","openSUSE:Leap 15.3"],"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 n/a","id":"CVE-2021-33910","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","netapp:hci_management_node","netapp:solidfire","systemd_project:systemd"],"type":"denial_of_service","year":"2021"},"n_packages":76,"n_references":17,"next":{"headline":"Code injection in n/a","id":"CVE-2021-33911"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd","purl":"pkg:rpm/redhat/systemd","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-container","purl":"pkg:rpm/redhat/systemd-container","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-container-debuginfo","purl":"pkg:rpm/redhat/systemd-container-debuginfo","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-debuginfo","purl":"pkg:rpm/redhat/systemd-debuginfo","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-debugsource","purl":"pkg:rpm/redhat/systemd-debugsource","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-devel","purl":"pkg:rpm/redhat/systemd-devel","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-journal-remote","purl":"pkg:rpm/redhat/systemd-journal-remote","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-journal-remote-debuginfo","purl":"pkg:rpm/redhat/systemd-journal-remote-debuginfo","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-libs","purl":"pkg:rpm/redhat/systemd-libs","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-libs-debuginfo","purl":"pkg:rpm/redhat/systemd-libs-debuginfo","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-pam","purl":"pkg:rpm/redhat/systemd-pam","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-pam-debuginfo","purl":"pkg:rpm/redhat/systemd-pam-debuginfo","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-tests","purl":"pkg:rpm/redhat/systemd-tests","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-tests-debuginfo","purl":"pkg:rpm/redhat/systemd-tests-debuginfo","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-udev","purl":"pkg:rpm/redhat/systemd-udev","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:239-45.el8_4.2"],"introduced":["0"],"last_affected":[],"package":"systemd-udev-debuginfo","purl":"pkg:rpm/redhat/systemd-udev-debuginfo","source":"RHSA-2021:2717"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd","purl":"pkg:rpm/redhat/systemd","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-container","purl":"pkg:rpm/redhat/systemd-container","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-container-debuginfo","purl":"pkg:rpm/redhat/systemd-container-debuginfo","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-debuginfo","purl":"pkg:rpm/redhat/systemd-debuginfo","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-debugsource","purl":"pkg:rpm/redhat/systemd-debugsource","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-devel","purl":"pkg:rpm/redhat/systemd-devel","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-journal-remote","purl":"pkg:rpm/redhat/systemd-journal-remote","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-journal-remote-debuginfo","purl":"pkg:rpm/redhat/systemd-journal-remote-debuginfo","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-libs","purl":"pkg:rpm/redhat/systemd-libs","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-libs-debuginfo","purl":"pkg:rpm/redhat/systemd-libs-debuginfo","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-pam","purl":"pkg:rpm/redhat/systemd-pam","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-pam-debuginfo","purl":"pkg:rpm/redhat/systemd-pam-debuginfo","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-tests","purl":"pkg:rpm/redhat/systemd-tests","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-tests-debuginfo","purl":"pkg:rpm/redhat/systemd-tests-debuginfo","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-udev","purl":"pkg:rpm/redhat/systemd-udev","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.1::baseos","fixed":["0:239-18.el8_1.8"],"introduced":["0"],"last_affected":[],"package":"systemd-udev-debuginfo","purl":"pkg:rpm/redhat/systemd-udev-debuginfo","source":"RHSA-2021:2724"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd","purl":"pkg:rpm/redhat/systemd","source":"RHSA-2021:2721"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd-container","purl":"pkg:rpm/redhat/systemd-container","source":"RHSA-2021:2721"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd-container-debuginfo","purl":"pkg:rpm/redhat/systemd-container-debuginfo","source":"RHSA-2021:2721"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd-debuginfo","purl":"pkg:rpm/redhat/systemd-debuginfo","source":"RHSA-2021:2721"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd-debugsource","purl":"pkg:rpm/redhat/systemd-debugsource","source":"RHSA-2021:2721"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd-devel","purl":"pkg:rpm/redhat/systemd-devel","source":"RHSA-2021:2721"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd-journal-remote","purl":"pkg:rpm/redhat/systemd-journal-remote","source":"RHSA-2021:2721"},{"ecosystem":"Red Hat:rhel_eus:8.2::baseos","fixed":["0:239-31.el8_2.4"],"introduced":["0"],"last_affected":[],"package":"systemd-journal-remote-debuginfo","purl":"pkg:rpm/redhat/systemd-journal-remote-debuginfo","source":"RHSA-2021:2721"}],"prev":{"headline":"Integer overflow in n/a","id":"CVE-2021-33909"},"products":["n/a"],"published":"2021-07-20","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":"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":"A local attacker can crash the operating system by triggering excessive memory allocation in systemd's unit name parser.","url":"https://insights.sbomify.com/CVE-2021-33910/"}