{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-12049 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-12049 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 8 Jun 2020. 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-2020-12049 and fix it if it is affected.\n\nWhat it is: CVE-2020-12049 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 8 Jun 2020. 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-2020-12049 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-2020-12049/ (Markdown: https://insights.sbomify.com/CVE-2020-12049/index.md)","id":"CVE-2020-12049","markdown":"https://insights.sbomify.com/CVE-2020-12049/index.md","name":"CVE-2020-12049","record":{"aliases":["ALPINE-CVE-2020-12049","DEBIAN-CVE-2020-12049","DLA-2235-1","JLSEC-2025-18","MGASA-2020-0262","RHSA-2020:2894","RHSA-2020:3014","RHSA-2020:3044","RHSA-2020:3298","SUSE-SU-2021:2470-1","SUSE-SU-2021:2810-1","UBUNTU-CVE-2020-12049","USN-4398-1","USN-4398-2","openSUSE-SU-2021:1204-1","openSUSE-SU-2021:2810-1"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"D-Bus IPC system","requires_auth":"low_privilege","summary":"A local attacker can exhaust file descriptors in D-Bus services by sending oversized messages, causing denial of service for other clients.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"dbus","vendor":"freedesktop"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","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-404","name":"Improper Resource Shutdown or Release"}],"description":"An issue was discovered in dbus \u003e= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.","ecosystems":["Red Hat:enterprise_linux:7::client","Red Hat:enterprise_linux:7::computenode","Red Hat:enterprise_linux:7::server","Red Hat:enterprise_linux:7::workstation","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::baseos","Red Hat:rhel_e4s:8.0::appstream","Red Hat:rhel_e4s:8.0::baseos","Red Hat:rhel_eus:8.1::appstream","Red Hat:rhel_eus:8.1::baseos","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Micro 5.0","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Basesystem 15 SP3","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 15","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-2020-12049","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux"],"type":"denial_of_service","year":"2020"},"n_packages":108,"n_references":10,"next":{"headline":"Race condition in n/a","id":"CVE-2020-12050"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus","purl":"pkg:rpm/redhat/dbus","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-debuginfo","purl":"pkg:rpm/redhat/dbus-debuginfo","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-devel","purl":"pkg:rpm/redhat/dbus-devel","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-doc","purl":"pkg:rpm/redhat/dbus-doc","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-libs","purl":"pkg:rpm/redhat/dbus-libs","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-tests","purl":"pkg:rpm/redhat/dbus-tests","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::client","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-x11","purl":"pkg:rpm/redhat/dbus-x11","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus","purl":"pkg:rpm/redhat/dbus","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-debuginfo","purl":"pkg:rpm/redhat/dbus-debuginfo","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-devel","purl":"pkg:rpm/redhat/dbus-devel","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-doc","purl":"pkg:rpm/redhat/dbus-doc","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-libs","purl":"pkg:rpm/redhat/dbus-libs","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-tests","purl":"pkg:rpm/redhat/dbus-tests","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::computenode","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-x11","purl":"pkg:rpm/redhat/dbus-x11","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus","purl":"pkg:rpm/redhat/dbus","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-debuginfo","purl":"pkg:rpm/redhat/dbus-debuginfo","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-devel","purl":"pkg:rpm/redhat/dbus-devel","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-doc","purl":"pkg:rpm/redhat/dbus-doc","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-libs","purl":"pkg:rpm/redhat/dbus-libs","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-tests","purl":"pkg:rpm/redhat/dbus-tests","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::server","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-x11","purl":"pkg:rpm/redhat/dbus-x11","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus","purl":"pkg:rpm/redhat/dbus","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-debuginfo","purl":"pkg:rpm/redhat/dbus-debuginfo","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-devel","purl":"pkg:rpm/redhat/dbus-devel","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-doc","purl":"pkg:rpm/redhat/dbus-doc","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-libs","purl":"pkg:rpm/redhat/dbus-libs","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-tests","purl":"pkg:rpm/redhat/dbus-tests","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:7::workstation","fixed":["1:1.10.24-14.el7_8"],"introduced":["0"],"last_affected":[],"package":"dbus-x11","purl":"pkg:rpm/redhat/dbus-x11","source":"RHSA-2020:2894"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-daemon-debuginfo","purl":"pkg:rpm/redhat/dbus-daemon-debuginfo","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-debuginfo","purl":"pkg:rpm/redhat/dbus-debuginfo","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-debugsource","purl":"pkg:rpm/redhat/dbus-debugsource","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-devel","purl":"pkg:rpm/redhat/dbus-devel","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-libs-debuginfo","purl":"pkg:rpm/redhat/dbus-libs-debuginfo","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-tests-debuginfo","purl":"pkg:rpm/redhat/dbus-tests-debuginfo","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-tools-debuginfo","purl":"pkg:rpm/redhat/dbus-tools-debuginfo","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-x11","purl":"pkg:rpm/redhat/dbus-x11","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-x11-debuginfo","purl":"pkg:rpm/redhat/dbus-x11-debuginfo","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus","purl":"pkg:rpm/redhat/dbus","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-common","purl":"pkg:rpm/redhat/dbus-common","source":"RHSA-2020:3014"},{"ecosystem":"Red Hat:enterprise_linux:8::baseos","fixed":["1:1.12.8-10.el8_2"],"introduced":["0"],"last_affected":[],"package":"dbus-daemon","purl":"pkg:rpm/redhat/dbus-daemon","source":"RHSA-2020:3014"}],"prev":{"headline":"Weak cryptography in Baxter Phoenix Hemodialysis Delivery System","id":"CVE-2020-12048"},"products":["n/a"],"published":"2020-06-08","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":"2024-08-04","vendors":["n/a"]},"summary":"A local attacker can exhaust file descriptors in D-Bus services by sending oversized messages, causing denial of service for other clients.","url":"https://insights.sbomify.com/CVE-2020-12049/"}