{"answers":{"affected":"It affects 28 products.","exploited":"There is no known exploitation of CVE-2019-14821 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2019-14821 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 19 Sep 2019. 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-2019-14821 and fix it if it is affected.\n\nWhat it is: CVE-2019-14821 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 19 Sep 2019. 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-2019-14821 in the wild and no public exploit code.\n\nAffected product: Canonical Ubuntu 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-2019-14821/ (Markdown: https://insights.sbomify.com/CVE-2019-14821/index.md)","id":"CVE-2019-14821","markdown":"https://insights.sbomify.com/CVE-2019-14821/index.md","name":"CVE-2019-14821","record":{"aliases":["DEBIAN-CVE-2019-14821","GHSA-5xg6-r8mx-769h","RHSA-2019:4256","UBUNTU-CVE-2019-14821"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel KVM","requires_auth":"low_privilege","summary":"An out-of-bounds write in the Linux kernel's KVM hypervisor allows local attackers to crash the system or escalate privileges.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"linux_kernel","vendor":"linux"},{"product":"aff_a700s_firmware","vendor":"netapp"},{"product":"data_availability_services","vendor":"netapp"},{"product":"h300e_firmware","vendor":"netapp"},{"product":"h300s_firmware","vendor":"netapp"},{"product":"h410c_firmware","vendor":"netapp"},{"product":"h410s_firmware","vendor":"netapp"},{"product":"h500e_firmware","vendor":"netapp"},{"product":"h500s_firmware","vendor":"netapp"},{"product":"h610s_firmware","vendor":"netapp"},{"product":"h700e_firmware","vendor":"netapp"},{"product":"h700s_firmware","vendor":"netapp"},{"product":"hci_management_node","vendor":"netapp"},{"product":"solidfire","vendor":"netapp"},{"product":"leap","vendor":"opensuse"},{"product":"sd-wan_edge","vendor":"oracle"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_linux_desktop","vendor":"redhat"},{"product":"enterprise_linux_eus","vendor":"redhat"},{"product":"enterprise_linux_for_real_time","vendor":"redhat"},{"product":"enterprise_linux_server","vendor":"redhat"},{"product":"enterprise_linux_server_aus","vendor":"redhat"},{"product":"enterprise_linux_server_tus","vendor":"redhat"},{"product":"enterprise_linux_workstation","vendor":"redhat"},{"product":"virtualization_host","vendor":"redhat"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring-\u003efirst' and 'ring-\u003elast' value could be supplied by a host user-space process. An unprivileged host user or process with access to '/dev/kvm' device could use this flaw to crash the host kernel, resulting in a denial of service or potentially escalating privileges on the system.","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"],"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":"Memory corruption in Kernel","id":"CVE-2019-14821","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","linux:linux_kernel","netapp:data_availability_services","netapp:h300e_firmware","netapp:h300s_firmware","netapp:h410c_firmware","netapp:h410s_firmware","netapp:h500e_firmware","netapp:h500s_firmware","netapp:h610s_firmware","netapp:h700e_firmware","netapp:h700s_firmware","netapp:hci_management_node","netapp:solidfire","opensuse:leap","redhat:enterprise_linux","redhat:enterprise_linux_desktop","redhat:enterprise_linux_eus","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_server_tus","redhat:enterprise_linux_workstation","redhat:virtualization_host"],"type":"memory_corruption","year":"2019"},"n_packages":70,"n_references":29,"next":{"headline":"Missing authorization in ibus","id":"CVE-2019-14822"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-i686","purl":"pkg:rpm/redhat/kernel-debuginfo-common-i686","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/redhat/kernel-devel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/redhat/kernel-doc","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-firmware","purl":"pkg:rpm/redhat/kernel-firmware","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-headers","purl":"pkg:rpm/redhat/kernel-headers","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"perf","purl":"pkg:rpm/redhat/perf","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"perf-debuginfo","purl":"pkg:rpm/redhat/perf-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf","purl":"pkg:rpm/redhat/python-perf","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf-debuginfo","purl":"pkg:rpm/redhat/python-perf-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-i686","purl":"pkg:rpm/redhat/kernel-debuginfo-common-i686","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/redhat/kernel-devel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/redhat/kernel-doc","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-firmware","purl":"pkg:rpm/redhat/kernel-firmware","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-headers","purl":"pkg:rpm/redhat/kernel-headers","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"perf","purl":"pkg:rpm/redhat/perf","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"perf-debuginfo","purl":"pkg:rpm/redhat/perf-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf","purl":"pkg:rpm/redhat/python-perf","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf-debuginfo","purl":"pkg:rpm/redhat/python-perf-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-bootwrapper","purl":"pkg:rpm/redhat/kernel-bootwrapper","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2019:4256"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.25.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-i686","purl":"pkg:rpm/redhat/kernel-debuginfo-common-i686","source":"RHSA-2019:4256"}],"prev":{"headline":"Exposure of Sensitive Information to an Unauthorized Actor in Keycloak","id":"CVE-2019-14820"},"products":["Kernel"],"published":"2019-09-19","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["Linux"]},"summary":"An out-of-bounds write in the Linux kernel's KVM hypervisor allows local attackers to crash the system or escalate privileges.","url":"https://insights.sbomify.com/CVE-2019-14821/"}