{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-12823 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-12823 is a critical memory corruption vulnerability in Debian Debian Linux, published on 12 May 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-2020-12823 and fix it if it is affected.\n\nWhat it is: CVE-2020-12823 is a critical memory corruption vulnerability in Debian Debian Linux, published on 12 May 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-2020-12823 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-2020-12823/ (Markdown: https://insights.sbomify.com/CVE-2020-12823/index.md)","id":"CVE-2020-12823","markdown":"https://insights.sbomify.com/CVE-2020-12823/index.md","name":"CVE-2020-12823","record":{"aliases":["DEBIAN-CVE-2020-12823","DLA-2212-1","GHSA-f93c-rq5c-gvpf","SUSE-SU-2020:1807-1","SUSE-SU-2020:1930-1","UBUNTU-CVE-2020-12823","openSUSE-SU-2020:0997-1","openSUSE-SU-2020:1027-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenConnect VPN client","requires_auth":"none","summary":"A buffer overflow in OpenConnect allows attackers to cause a denial of service via crafted certificate data.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"fedora","vendor":"fedoraproject"},{"product":"openconnect","vendor":"infradead"},{"product":"leap","vendor":"opensuse"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c.","ecosystems":["SUSE:Linux Enterprise Workstation Extension 12 SP4","SUSE:Linux Enterprise Workstation Extension 12 SP5","SUSE:Linux Enterprise Workstation Extension 15 SP1","SUSE:Linux Enterprise Workstation Extension 15 SP2","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":"Memory corruption in n/a","id":"CVE-2020-12823","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","fedoraproject:fedora","opensuse:leap"],"type":"memory_corruption","year":"2020"},"n_packages":6,"n_references":9,"next":{"headline":"Denial of service in n/a","id":"CVE-2020-12824"},"packages":[{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 12 SP4","fixed":["7.08-3.12.1"],"introduced":["0"],"last_affected":[],"package":"openconnect","purl":"pkg:rpm/suse/openconnect\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP4","source":"SUSE-SU-2020:1807-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 12 SP5","fixed":["7.08-3.12.1"],"introduced":["0"],"last_affected":[],"package":"openconnect","purl":"pkg:rpm/suse/openconnect\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP5","source":"SUSE-SU-2020:1807-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 15 SP1","fixed":["7.08-6.9.1"],"introduced":["0"],"last_affected":[],"package":"openconnect","purl":"pkg:rpm/suse/openconnect\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1","source":"SUSE-SU-2020:1930-1"},{"ecosystem":"SUSE:Linux Enterprise Workstation Extension 15 SP2","fixed":["7.08-6.9.1"],"introduced":["0"],"last_affected":[],"package":"openconnect","purl":"pkg:rpm/suse/openconnect\u0026distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP2","source":"SUSE-SU-2020:1930-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["7.08-lp151.6.9.1"],"introduced":["0"],"last_affected":[],"package":"openconnect","purl":"pkg:rpm/opensuse/openconnect\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:0997-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["7.08-lp152.9.4.2"],"introduced":["0"],"last_affected":[],"package":"openconnect","purl":"pkg:rpm/opensuse/openconnect\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1027-1"}],"prev":{"headline":"Gossipsub 1.0 does not properly resist invalid message spam, such as an eclipse attack or a sybil attack.","id":"CVE-2020-12821"},"products":["n/a"],"published":"2020-05-12","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 buffer overflow in OpenConnect allows attackers to cause a denial of service via crafted certificate data.","url":"https://insights.sbomify.com/CVE-2020-12823/"}