{"answers":{"affected":"It affects 24 products.","exploited":"There is no known exploitation of CVE-2019-11478 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2019-11478 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 18 Jun 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-2019-11478 and fix it if it is affected.\n\nWhat it is: CVE-2019-11478 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 18 Jun 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-2019-11478 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-2019-11478/ (Markdown: https://insights.sbomify.com/CVE-2019-11478/index.md)","id":"CVE-2019-11478","markdown":"https://insights.sbomify.com/CVE-2019-11478/index.md","name":"CVE-2019-11478","record":{"aliases":["DEBIAN-CVE-2019-11478","GHSA-xh2h-cw6h-x9h5","SUSE-SU-2019:1888-1","SUSE-SU-2019:1935-1","UBUNTU-CVE-2019-11478"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A remote attacker can cause a denial of service by exploiting TCP SACK handling to exhaust memory in the Linux kernel.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"canonical","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"big-ip_access_policy_manager","vendor":"f5"},{"product":"big-ip_advanced_firewall_manager","vendor":"f5"},{"product":"big-ip_analytics","vendor":"f5"},{"product":"big-ip_application_acceleration_manager","vendor":"f5"},{"product":"big-ip_application_security_manager","vendor":"f5"},{"product":"big-ip_domain_name_system","vendor":"f5"},{"product":"big-ip_edge_gateway","vendor":"f5"},{"product":"big-ip_fraud_protection_service","vendor":"f5"},{"product":"big-ip_global_traffic_manager","vendor":"f5"},{"product":"big-ip_link_controller","vendor":"f5"},{"product":"big-ip_local_traffic_manager","vendor":"f5"},{"product":"big-ip_policy_enforcement_manager","vendor":"f5"},{"product":"big-ip_webaccelerator","vendor":"f5"},{"product":"traffix_signaling_delivery_controller","vendor":"f5"},{"product":"connect_secure","vendor":"ivanti"},{"product":"linux_kernel","vendor":"linux"},{"product":"pulse_policy_secure","vendor":"pulsesecure"},{"product":"pulse_secure_virtual_application_delivery_controller","vendor":"pulsesecure"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_linux_atomic_host","vendor":"redhat"},{"product":"enterprise_linux_aus","vendor":"redhat"},{"product":"enterprise_linux_eus","vendor":"redhat"},{"product":"enterprise_mrg","vendor":"redhat"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"},{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e.","ecosystems":["SUSE:Linux Enterprise Live Patching 12 SP4","SUSE:Linux Enterprise Live Patching 15","SUSE:Linux Enterprise Live Patching 15 SP1","SUSE:Linux Enterprise Server 12 SP1-LTSS","SUSE:Linux Enterprise Server 12 SP2-LTSS","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP1","SUSE:Linux Enterprise Server for SAP Applications 12 SP2","SUSE:Linux Enterprise Server for SAP Applications 12 SP3"],"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":"SACK can cause extensive memory use via fragmented resend queue","id":"CVE-2019-11478","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","f5:big-ip_access_policy_manager","f5:big-ip_advanced_firewall_manager","f5:big-ip_analytics","f5:big-ip_application_acceleration_manager","f5:big-ip_application_security_manager","f5:big-ip_domain_name_system","f5:big-ip_edge_gateway","f5:big-ip_fraud_protection_service","f5:big-ip_global_traffic_manager","f5:big-ip_link_controller","f5:big-ip_local_traffic_manager","f5:big-ip_policy_enforcement_manager","f5:big-ip_webaccelerator","ivanti:connect_secure","linux:linux_kernel","redhat:enterprise_linux","redhat:enterprise_linux_aus","redhat:enterprise_linux_eus","redhat:enterprise_mrg"],"type":"denial_of_service","year":"2019"},"n_packages":10,"n_references":29,"next":{"headline":"Denial of service in Linux kernel","id":"CVE-2019-11479"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Live Patching 12 SP4","fixed":["2-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP4_Update_5","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP4_Update_5\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP4","source":"SUSE-SU-2019:1935-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15","fixed":["2-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15_Update_11","purl":"pkg:rpm/suse/kernel-livepatch-SLE15_Update_11\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015","source":"SUSE-SU-2019:1888-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15 SP1","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15-SP1_Update_1","purl":"pkg:rpm/suse/kernel-livepatch-SLE15-SP1_Update_1\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP1","source":"SUSE-SU-2019:1888-1"},{"ecosystem":"SUSE:Linux Enterprise Live Patching 15 SP1","fixed":["2-2.1"],"introduced":["0"],"last_affected":[],"package":"kernel-livepatch-SLE15-SP1_Update_2","purl":"pkg:rpm/suse/kernel-livepatch-SLE15-SP1_Update_2\u0026distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP1","source":"SUSE-SU-2019:1888-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP1-LTSS","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_34","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_34\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSS","source":"SUSE-SU-2019:1935-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_30","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_30\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2019:1935-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP3_Update_26","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_26\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS","source":"SUSE-SU-2019:1935-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP1","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP1_Update_34","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP1_Update_34\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1","source":"SUSE-SU-2019:1935-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP2_Update_30","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_30\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2","source":"SUSE-SU-2019:1935-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["3-2.1"],"introduced":["0"],"last_affected":[],"package":"kgraft-patch-SLE12-SP3_Update_26","purl":"pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_26\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2019:1935-1"}],"prev":{"headline":"Integer overflow in TCP_SKB_CB(skb)-\u003etcp_gso_segs","id":"CVE-2019-11477"},"products":["Linux kernel"],"published":"2019-06-18","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":"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":"2024-09-16","vendors":["Linux"]},"summary":"A remote attacker can cause a denial of service by exploiting TCP SACK handling to exhaust memory in the Linux kernel.","url":"https://insights.sbomify.com/CVE-2019-11478/"}