{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2021-43267 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-43267 is a critical vulnerability in Fedoraproject Fedora, published on 2 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-43267 and fix it if it is affected.\n\nWhat it is: CVE-2021-43267 is a critical vulnerability in Fedoraproject Fedora, published on 2 Nov 2021. 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-2021-43267 in the wild and no public exploit code.\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-2021-43267/ (Markdown: https://insights.sbomify.com/CVE-2021-43267/index.md)","id":"CVE-2021-43267","markdown":"https://insights.sbomify.com/CVE-2021-43267/index.md","name":"CVE-2021-43267","record":{"aliases":["A-205243414","AZL-6603","DEBIAN-CVE-2021-43267","GHSA-c22h-4v9p-5cx2","PUB-A-205243414","RHSA-2021:4644","RHSA-2021:4645","UBUNTU-CVE-2021-43267"],"analysis":{"component_type":"kernel","fix_type":"upgrade","impacts":["denial_of_service","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel TIPC","requires_auth":"none","summary":"Remote attackers can exploit insufficient size validation in TIPC crypto messages to cause denial of service or execute code.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"linux_kernel","vendor":"linux"},{"product":"h300e_firmware","vendor":"netapp"},{"product":"h300s_firmware","vendor":"netapp"},{"product":"h410s_firmware","vendor":"netapp"},{"product":"h500e_firmware","vendor":"netapp"},{"product":"h500s_firmware","vendor":"netapp"},{"product":"h700e_firmware","vendor":"netapp"},{"product":"h700s_firmware","vendor":"netapp"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","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-1284","name":"Improper Validation of Specified Quantity in Input"}],"description":"An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.","ecosystems":["Red Hat:enterprise_linux:8::baseos","Red Hat:rhel_eus:8.4::baseos"],"exploits":{"exploitdb":0,"first_seen":"2021-11-09","github_poc":2,"max_poc_stars":4,"metasploit":0,"nuclei":0,"refs":[{"date":"2021-11-26T04:00:56Z","kind":"github_poc","ref":"https://github.com/zzhacked/CVE-2021-43267","stars":4,"title":"Local PoC exploit for CVE-2021-43267 (Linux TIPC)"},{"date":"2021-11-09T02:14:13Z","kind":"github_poc","ref":"https://github.com/DarkSprings/CVE-2021-43267-POC","stars":0,"title":"trusty poc Provide it to legitimate people"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Integer overflow in n/a","id":"CVE-2021-43267","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fedoraproject:fedora","products":["fedoraproject:fedora","linux:linux_kernel","netapp:h300e_firmware","netapp:h300s_firmware","netapp:h410s_firmware","netapp:h500e_firmware","netapp:h500s_firmware","netapp:h700e_firmware","netapp:h700s_firmware"],"type":"integer_overflow","year":"2021"},"n_packages":27,"n_references":6,"next":{"headline":"Use after free in n/a","id":"CVE-2021-43268"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1-1.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-348","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-348","source":"RHSA-2021:4645"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1-1.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-348-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-348-debuginfo","source":"RHSA-2021:4645"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["0:1-1.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-348-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-348-debugsource","source":"RHSA-2021:4645"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-8.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-8.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-8.el8"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305-debugsource","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-5.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_10_2","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_10_2","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-5.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_10_2-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_10_2-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-5.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_10_2-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_10_2-debugsource","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_12_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_12_1","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_12_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_12_1-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-4.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_12_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_12_1-debugsource","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-3.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_17_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_17_1","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-3.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_17_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_17_1-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-3.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_17_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_17_1-debugsource","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-3.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_19_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_19_1","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-3.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_19_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_19_1-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-3.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_19_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_19_1-debugsource","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-2.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_25_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_25_1","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-2.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_25_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_25_1-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-2.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_25_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_25_1-debugsource","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-7.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_3_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_3_1","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-7.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_3_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_3_1-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-7.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_3_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_3_1-debugsource","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-6.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_7_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_7_1","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-6.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_7_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_7_1-debuginfo","source":"RHSA-2021:4644"},{"ecosystem":"Red Hat:rhel_eus:8.4::baseos","fixed":["0:1-6.el8_4"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-305_7_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-305_7_1-debugsource","source":"RHSA-2021:4644"}],"prev":{"headline":"Command injection in n/a","id":"CVE-2021-43266"},"products":["n/a"],"published":"2021-11-02","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":"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Remote attackers can exploit insufficient size validation in TIPC crypto messages to cause denial of service or execute code.","url":"https://insights.sbomify.com/CVE-2021-43267/"}