{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-20201 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2021-20201 is a medium-severity denial of service vulnerability in Redhat Enterprise Linux, published on 28 May 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-2021-20201 and fix it if it is affected.\n\nWhat it is: CVE-2021-20201 is a medium-severity denial of service vulnerability in Redhat Enterprise Linux, published on 28 May 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-2021-20201 in the wild and no public exploit code.\n\nAffected product: Redhat Enterprise 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-2021-20201/ (Markdown: https://insights.sbomify.com/CVE-2021-20201/index.md)","id":"CVE-2021-20201","markdown":"https://insights.sbomify.com/CVE-2021-20201/index.md","name":"CVE-2021-20201","record":{"aliases":["ALPINE-CVE-2021-20201","ALSA-2021:1924","CLSA-2026-1778489013","DEBIAN-CVE-2021-20201","GHSA-f3pm-m5m9-45gw","MGASA-2021-0405","OESA-2021-1233","RHSA-2021:1924","RLSA-2021:1924","SUSE-SU-2021:1906-1","SUSE-SU-2021:1927-1","SUSE-SU-2022:2881-1","SUSE-SU-2022:2881-2","UBUNTU-CVE-2021-20201","openSUSE-SU-2021:0874-1","openSUSE-SU-2024:12406-1","openSUSE-SU-2024:13045-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"SPICE protocol library","requires_auth":"none","summary":"Remote attackers can cause denial of service via CPU consumption by performing many renegotiations in a single connection.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"enterprise_linux","vendor":"redhat"},{"product":"spice","vendor":"spice_project"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"A flaw was found in spice in versions before 0.14.92. A DoS tool might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection.","ecosystems":["AlmaLinux:8","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::crb","Rocky Linux:8","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise Micro 5.0","SUSE:Linux Enterprise Micro 5.2","SUSE:Linux Enterprise Module for Server Applications 15 SP2","SUSE:Linux Enterprise Module for Server Applications 15 SP3","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 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 Software Development Kit 12 SP5","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.2","openSUSE:Leap 15.3","openSUSE:Leap Micro 5.2","openSUSE:Tumbleweed"],"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 spice","id":"CVE-2021-20201","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:enterprise_linux","products":["redhat:enterprise_linux"],"type":"denial_of_service","year":"2021"},"n_packages":32,"n_references":3,"next":{"headline":"Temporary Directory Hijacking Vulnerability in Keycloak","id":"CVE-2021-20202"},"packages":[{"ecosystem":"AlmaLinux:8","fixed":["0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-server","purl":"pkg:rpm/almalinux/spice-server","source":"ALSA-2021:1924"},{"ecosystem":"AlmaLinux:8","fixed":["0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-server-devel","purl":"pkg:rpm/almalinux/spice-server-devel","source":"ALSA-2021:1924"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/redhat/spice","source":"RHSA-2021:1924"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-debugsource","purl":"pkg:rpm/redhat/spice-debugsource","source":"RHSA-2021:1924"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-server","purl":"pkg:rpm/redhat/spice-server","source":"RHSA-2021:1924"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-server-debuginfo","purl":"pkg:rpm/redhat/spice-server-debuginfo","source":"RHSA-2021:1924"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-debugsource","purl":"pkg:rpm/redhat/spice-debugsource","source":"RHSA-2021:1924"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-server-debuginfo","purl":"pkg:rpm/redhat/spice-server-debuginfo","source":"RHSA-2021:1924"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice-server-devel","purl":"pkg:rpm/redhat/spice-server-devel","source":"RHSA-2021:1924"},{"ecosystem":"Rocky Linux:8","fixed":["0:0.14.3-4.el8"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/rocky-linux/spice?distro=rocky-linux-8\u0026epoch=0","source":"RLSA-2021:1924"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.0","fixed":["0.14.2-3.6.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.0","source":"SUSE-SU-2021:1927-1"},{"ecosystem":"SUSE:Linux Enterprise Micro 5.2","fixed":["0.14.3-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Micro%205.2","source":"SUSE-SU-2022:2881-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP2","fixed":["0.14.2-3.6.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2","source":"SUSE-SU-2021:1927-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP3","fixed":["0.14.3-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3","source":"SUSE-SU-2022:2881-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP4-LTSS","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP5","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:OpenStack Cloud 8","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20OpenStack%20Cloud%208","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:OpenStack Cloud 9","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20OpenStack%20Cloud%209","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 9","fixed":["0.12.8-18.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/suse/spice\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%209","source":"SUSE-SU-2021:1906-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["0.14.2-lp152.2.6.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/opensuse/spice\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2021:0874-1"},{"ecosystem":"openSUSE:Leap 15.3","fixed":["0.14.3-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/opensuse/spice\u0026distro=openSUSE%20Leap%2015.3","source":"SUSE-SU-2022:2881-1"},{"ecosystem":"openSUSE:Leap Micro 5.2","fixed":["0.14.3-150300.3.3.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/opensuse/spice\u0026distro=openSUSE%20Leap%20Micro%205.2","source":"SUSE-SU-2022:2881-2"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["0.15.2-2.1"],"introduced":["0"],"last_affected":[],"package":"spice","purl":"pkg:rpm/opensuse/spice\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:13045-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["0.41-3.1"],"introduced":["0"],"last_affected":[],"package":"spice-gtk","purl":"pkg:rpm/opensuse/spice-gtk\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:12406-1"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-20200"},"products":["spice"],"published":"2021-05-28","related":[{"cvss_score":9.8,"headline":"Red Hat JBoss RichFaces Framework Expression Language Injection","id":"CVE-2018-14667","kev_date_added":"2023-09-28","published":"2018-11-06"},{"cvss_score":9.8,"headline":"Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit","id":"CVE-2021-20325","kev_date_added":null,"published":"2022-02-18"},{"cvss_score":9.8,"headline":"Memory corruption in libwebp","id":"CVE-2018-25011","kev_date_added":null,"published":"2021-05-21"},{"cvss_score":9.8,"headline":"Other in libwebp","id":"CVE-2018-25014","kev_date_added":null,"published":"2021-05-21"},{"cvss_score":9.8,"headline":"Supply chain in redhat-upgrade-tool","id":"CVE-2014-3585","kev_date_added":null,"published":"2019-11-22"},{"cvss_score":9.3,"headline":"Squid: request/response smuggling in http/1.1 and icap","id":"CVE-2023-46846","kev_date_added":null,"published":"2023-11-03"},{"cvss_score":9.1,"headline":"Memory corruption in libwebp","id":"CVE-2018-25009","kev_date_added":null,"published":"2021-05-21"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Remote attackers can cause denial of service via CPU consumption by performing many renegotiations in a single connection.","url":"https://insights.sbomify.com/CVE-2021-20201/"}