{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-35498 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-35498 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 11 Feb 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-2020-35498 and fix it if it is affected.\n\nWhat it is: CVE-2020-35498 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 11 Feb 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-2020-35498 in the wild and no public exploit code.\n\nAffected product: Debian Debian 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-2020-35498/ (Markdown: https://insights.sbomify.com/CVE-2020-35498/index.md)","id":"CVE-2020-35498","markdown":"https://insights.sbomify.com/CVE-2020-35498/index.md","name":"CVE-2020-35498","record":{"aliases":["DEBIAN-CVE-2020-35498","DSA-4852-1","GHSA-9978-p96m-85pj","SUSE-SU-2021:0436-1","SUSE-SU-2021:0439-1","SUSE-SU-2021:0440-1","SUSE-SU-2021:0446-1","SUSE-SU-2021:0451-1","SUSE-SU-2021:0479-1","SUSE-SU-2022:3384-1","UBUNTU-CVE-2020-35498","USN-4729-1","openSUSE-SU-2021:0283-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Open vSwitch","requires_auth":"none","summary":"A malicious user can cause a denial of service in Open vSwitch by sending crafted packets that create overly wide kernel megaflows.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"openvswitch","vendor":"openvswitch"}],"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-400","name":"Uncontrolled Resource Consumption"}],"description":"A vulnerability was found in openvswitch. A limitation in the implementation of userspace packet parsing can allow a malicious user to send a specially crafted packet causing the resulting megaflow in the kernel to be too wide, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.","ecosystems":["SUSE:Enterprise Storage 5","SUSE:Enterprise Storage 6","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Module for Package Hub 15 SP2","SUSE:Linux Enterprise Module for Server Applications 15 SP2","SUSE:Linux Enterprise Server 12 SP2-BCL","SUSE:Linux Enterprise Server 12 SP2-LTSS","SUSE:Linux Enterprise Server 12 SP3-BCL","SUSE:Linux Enterprise Server 12 SP3-LTSS","SUSE:Linux Enterprise Server 12 SP4-LTSS","SUSE:Linux Enterprise Server 12 SP5","SUSE:Linux Enterprise Server 15 SP1-BCL","SUSE:Linux Enterprise Server 15 SP1-LTSS","SUSE:Linux Enterprise Server 15-LTSS","SUSE:Linux Enterprise Server for SAP Applications 12 SP2","SUSE:Linux Enterprise Server for SAP Applications 12 SP3","SUSE:Linux Enterprise Server for SAP Applications 12 SP4","SUSE:Linux Enterprise Server for SAP Applications 12 SP5","SUSE:Linux Enterprise Server for SAP Applications 15","SUSE:Linux Enterprise Server for SAP Applications 15 SP1","SUSE:Manager Proxy 4.0","SUSE:Manager Retail Branch Server 4.0","SUSE:Manager Server 4.0","SUSE:OpenStack Cloud 7","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.2"],"exploits":{"exploitdb":0,"first_seen":"2021-02-12","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2021-02-12T02:08:01Z","kind":"github_poc","ref":"https://github.com/freddierice/cve-2020-35498-flag","stars":0,"title":"Flag the cve-2020-35498 attack"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Denial of service in openvswitch","id":"CVE-2020-35498","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora"],"type":"denial_of_service","year":"2020"},"n_packages":38,"n_references":6,"next":{"headline":"Null dereference in kernel","id":"CVE-2020-35499"},"packages":[{"ecosystem":"SUSE:Enterprise Storage 5","fixed":["2.7.12-3.39.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Enterprise%20Storage%205","source":"SUSE-SU-2021:0446-1"},{"ecosystem":"SUSE:Enterprise Storage 6","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Enterprise%20Storage%206","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["2.7.12-3.39.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2021:0446-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-ESPOS","fixed":["2.11.5-6.33.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS","source":"SUSE-SU-2021:0440-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-LTSS","fixed":["2.11.5-6.33.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS","source":"SUSE-SU-2021:0440-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP2","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP2","fixed":["2.13.2-9.14.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2","source":"SUSE-SU-2021:0436-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP2","fixed":["2.13.2-9.14.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2","source":"SUSE-SU-2021:0436-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch-dpdk","purl":"pkg:rpm/suse/openvswitch-dpdk\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch-dpdk","purl":"pkg:rpm/suse/openvswitch-dpdk\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","fixed":["2.7.12-3.39.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL","source":"SUSE-SU-2021:0446-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","fixed":["2.7.12-3.39.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS","source":"SUSE-SU-2021:0446-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP4-LTSS","fixed":["2.8.10-4.26.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS","source":"SUSE-SU-2021:0479-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["2.11.5-3.9.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2022:3384-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP1-BCL","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15 SP1-LTSS","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15-LTSS","fixed":["2.11.5-6.33.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS","source":"SUSE-SU-2021:0440-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch-dpdk","purl":"pkg:rpm/suse/openvswitch-dpdk\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["2.7.12-3.39.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2021:0446-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","fixed":["2.8.10-4.26.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4","source":"SUSE-SU-2021:0479-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["2.11.5-3.9.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2022:3384-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15","fixed":["2.11.5-6.33.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015","source":"SUSE-SU-2021:0440-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15 SP1","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Manager Proxy 4.0","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Manager%20Proxy%204.0","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Manager Retail Branch Server 4.0","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:Manager Server 4.0","fixed":["2.11.5-3.15.3"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20Manager%20Server%204.0","source":"SUSE-SU-2021:0439-1"},{"ecosystem":"SUSE:OpenStack Cloud 7","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20OpenStack%20Cloud%207","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:OpenStack Cloud 7","fixed":["2.5.11-25.29.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch-dpdk","purl":"pkg:rpm/suse/openvswitch-dpdk\u0026distro=SUSE%20OpenStack%20Cloud%207","source":"SUSE-SU-2021:0451-1"},{"ecosystem":"SUSE:OpenStack Cloud 8","fixed":["2.7.12-3.39.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20OpenStack%20Cloud%208","source":"SUSE-SU-2021:0446-1"},{"ecosystem":"SUSE:OpenStack Cloud 9","fixed":["2.8.10-4.26.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20OpenStack%20Cloud%209","source":"SUSE-SU-2021:0479-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["2.7.12-3.39.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2021:0446-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 9","fixed":["2.8.10-4.26.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/suse/openvswitch\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%209","source":"SUSE-SU-2021:0479-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["2.13.2-lp152.3.12.1"],"introduced":["0"],"last_affected":[],"package":"openvswitch","purl":"pkg:rpm/opensuse/openvswitch\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0283-1"}],"prev":{"headline":"Information disclosure in ovirt-engine","id":"CVE-2020-35497"},"products":["openvswitch"],"published":"2021-02-11","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-23","vendors":["n/a"]},"summary":"A malicious user can cause a denial of service in Open vSwitch by sending crafted packets that create overly wide kernel megaflows.","url":"https://insights.sbomify.com/CVE-2020-35498/"}