{"answers":{"affected":"It affects 3 products.","exploited":"There is no known exploitation of CVE-2020-25708 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-25708 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 27 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-25708 and fix it if it is affected.\n\nWhat it is: CVE-2020-25708 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 27 Nov 2020. 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-2020-25708 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-2020-25708/ (Markdown: https://insights.sbomify.com/CVE-2020-25708/index.md)","id":"CVE-2020-25708","markdown":"https://insights.sbomify.com/CVE-2020-25708/index.md","name":"CVE-2020-25708","record":{"aliases":["DEBIAN-CVE-2020-25708","DLA-2451-1","GHSA-3xcq-6vjj-wqx7","MGASA-2020-0439","SUSE-SU-2020:14549-1","SUSE-SU-2020:3515-1","SUSE-SU-2020:3550-1","UBUNTU-CVE-2020-25708","USN-4636-1","openSUSE-SU-2020:2025-1","openSUSE-SU-2020:2097-1"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"VNC server library","requires_auth":"none","summary":"A malicious client can cause a denial of service in libvncserver by triggering a divide by zero error via a crafted message.","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":"libvncserver","vendor":"libvncserver_project"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","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-369","name":"Divide By Zero"}],"description":"A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.","ecosystems":["SUSE:Enterprise Storage 5","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise Module for Package Hub 15 SP1","SUSE:Linux Enterprise Module for Package Hub 15 SP2","SUSE:Linux Enterprise Point of Sale 11 SP3","SUSE:Linux Enterprise Server 11 SP4-LTSS","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 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 Software Development Kit 12 SP5","SUSE:Linux Enterprise Workstation Extension 15 SP1","SUSE:Linux Enterprise Workstation Extension 15 SP2","SUSE:OpenStack Cloud 7","SUSE:OpenStack Cloud 8","SUSE:OpenStack Cloud 9","SUSE:OpenStack Cloud Crowbar 8","SUSE:OpenStack Cloud Crowbar 9","openSUSE:Leap 15.1","openSUSE:Leap 15.2"],"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 libvncserver","id":"CVE-2020-25708","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","redhat:enterprise_linux"],"type":"denial_of_service","year":"2020"},"n_packages":26,"n_references":2,"next":{"headline":"Denial of service in OpenLDAP","id":"CVE-2020-25709"},"packages":[{"ecosystem":"SUSE:Enterprise Storage 5","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Enterprise%20Storage%205","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP1","fixed":["0.9.10-4.25.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP1","source":"SUSE-SU-2020:3515-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Package Hub 15 SP2","fixed":["0.9.10-4.25.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP2","source":"SUSE-SU-2020:3515-1"},{"ecosystem":"SUSE:Linux Enterprise Point of Sale 11 SP3","fixed":["0.9.1-160.22.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3","source":"SUSE-SU-2020:14549-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","fixed":["0.9.1-160.22.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS","source":"SUSE-SU-2020:14549-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP4-LTSS","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP5","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 15 SP1","fixed":["0.9.10-4.25.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1","source":"SUSE-SU-2020:3515-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 15 SP2","fixed":["0.9.10-4.25.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2","source":"SUSE-SU-2020:3515-1"},{"ecosystem":"SUSE:OpenStack Cloud 7","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20OpenStack%20Cloud%207","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:OpenStack Cloud 8","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20OpenStack%20Cloud%208","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:OpenStack Cloud 9","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20OpenStack%20Cloud%209","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 9","fixed":["0.9.9-17.34.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/suse/LibVNCServer\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%209","source":"SUSE-SU-2020:3550-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["0.9.10-lp151.7.12.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/opensuse/LibVNCServer\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:2097-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["0.9.10-lp152.9.8.1"],"introduced":["0"],"last_affected":[],"package":"LibVNCServer","purl":"pkg:rpm/opensuse/LibVNCServer\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:2025-1"}],"prev":{"headline":"Cross-site scripting in cacti","id":"CVE-2020-25706"},"products":["libvncserver"],"published":"2020-11-27","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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"A malicious client can cause a denial of service in libvncserver by triggering a divide by zero error via a crafted message.","url":"https://insights.sbomify.com/CVE-2020-25708/"}