{"answers":{"affected":"It affects 12 products.","exploited":"There is no known exploitation of CVE-2019-19956 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2019-19956 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 24 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-19956 and fix it if it is affected.\n\nWhat it is: CVE-2019-19956 is a high-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 24 Dec 2019. 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-2019-19956 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-2019-19956/ (Markdown: https://insights.sbomify.com/CVE-2019-19956/index.md)","id":"CVE-2019-19956","markdown":"https://insights.sbomify.com/CVE-2019-19956/index.md","name":"CVE-2019-19956","record":{"aliases":["ALPINE-CVE-2019-19956","DEBIAN-CVE-2019-19956","DLA-2048-1","ECHO-36f8-7dd5-7a33","GHSA-5cvc-j2xm-h554","JLSEC-2025-66","MGASA-2020-0020","MGASA-2020-0271","SUSE-SU-2020:1532-1","SUSE-SU-2020:1532-2","UBUNTU-CVE-2019-19956","openSUSE-SU-2020:0781-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"libxml2 XML parser","requires_auth":"none","summary":"A memory leak in libxml2 allows attackers to cause denial of service by exhausting system memory through crafted XML input.","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":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"active_iq_unified_manager","vendor":"netapp"},{"product":"clustered_data_ontap","vendor":"netapp"},{"product":"clustered_data_ontap_antivirus_connector","vendor":"netapp"},{"product":"manageability_software_development_kit","vendor":"netapp"},{"product":"ontap_select_deploy_administration_utility","vendor":"netapp"},{"product":"steelstore_cloud_integrated_storage","vendor":"netapp"},{"product":"real_user_experience_insight","vendor":"oracle"},{"product":"sinema_remote_connect_server","vendor":"siemens"},{"product":"libxml2","vendor":"xmlsoft"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"},{"id":"CWE-772","name":"Missing Release of Resource after Effective Lifetime"}],"description":"xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc-\u003eoldNs.","ecosystems":["SUSE:Linux Enterprise Module for Basesystem 15 SP1","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Python 2 15 SP1","SUSE:Linux Enterprise Module for Python 2 15 SP2","openSUSE:Leap 15.1"],"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-2019-19956","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","netapp:active_iq_unified_manager","netapp:clustered_data_ontap","netapp:ontap_select_deploy_administration_utility","netapp:steelstore_cloud_integrated_storage","siemens:sinema_remote_connect_server","xmlsoft:libxml2"],"type":"denial_of_service","year":"2019"},"n_packages":8,"n_references":12,"next":{"headline":"Information disclosure in n/a","id":"CVE-2019-19957"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","fixed":["2.9.7-3.22.1"],"introduced":["0"],"last_affected":[],"package":"libxml2","purl":"pkg:rpm/suse/libxml2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1","source":"SUSE-SU-2020:1532-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","fixed":["2.9.7-3.22.1"],"introduced":["0"],"last_affected":[],"package":"python-libxml2-python","purl":"pkg:rpm/suse/python-libxml2-python\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1","source":"SUSE-SU-2020:1532-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["2.9.7-3.22.1"],"introduced":["0"],"last_affected":[],"package":"libxml2","purl":"pkg:rpm/suse/libxml2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2020:1532-2"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["2.9.7-3.22.1"],"introduced":["0"],"last_affected":[],"package":"python-libxml2-python","purl":"pkg:rpm/suse/python-libxml2-python\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2020:1532-2"},{"ecosystem":"SUSE:Linux Enterprise Module for Python 2 15 SP1","fixed":["2.9.7-3.22.1"],"introduced":["0"],"last_affected":[],"package":"python-libxml2-python","purl":"pkg:rpm/suse/python-libxml2-python\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Python%202%2015%20SP1","source":"SUSE-SU-2020:1532-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Python 2 15 SP2","fixed":["2.9.7-3.22.1"],"introduced":["0"],"last_affected":[],"package":"python-libxml2-python","purl":"pkg:rpm/suse/python-libxml2-python\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Python%202%2015%20SP2","source":"SUSE-SU-2020:1532-2"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["2.9.7-lp151.5.12.1"],"introduced":["0"],"last_affected":[],"package":"libxml2","purl":"pkg:rpm/opensuse/libxml2\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:0781-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["2.9.7-lp151.5.12.1"],"introduced":["0"],"last_affected":[],"package":"python-libxml2-python","purl":"pkg:rpm/opensuse/python-libxml2-python\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:0781-1"}],"prev":{"headline":"Privilege escalation in n/a","id":"CVE-2019-19954"},"products":["n/a"],"published":"2019-12-24","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":"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["n/a"]},"summary":"A memory leak in libxml2 allows attackers to cause denial of service by exhausting system memory through crafted XML input.","url":"https://insights.sbomify.com/CVE-2019-19956/"}