{"answers":{"affected":"It affects 14 products.","exploited":"There is no known exploitation of CVE-2020-15705 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-15705 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 29 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-15705 and fix it if it is affected.\n\nWhat it is: CVE-2020-15705 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 29 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-15705 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-2020-15705/ (Markdown: https://insights.sbomify.com/CVE-2020-15705/index.md)","id":"CVE-2020-15705","markdown":"https://insights.sbomify.com/CVE-2020-15705/index.md","name":"CVE-2020-15705","record":{"aliases":["ALPINE-CVE-2020-15705","GHSA-w739-fjv8-98pq","SUSE-SU-2020:14461-1","SUSE-SU-2020:2303-1","SUSE-SU-2020:2304-1","SUSE-SU-2020:2305-1","SUSE-SU-2020:2306-1","SUSE-SU-2020:2307-1","SUSE-SU-2020:2308-1","UBUNTU-CVE-2020-15705","openSUSE-SU-2020:1280-1","openSUSE-SU-2020:1282-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"GRUB2 bootloader","requires_auth":"high_privilege","summary":"Attackers can bypass Secure Boot to load unsigned kernels when GRUB is booted directly without shim in specific configurations.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"canonical","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"grub2","vendor":"gnu"},{"product":"windows_10","vendor":"microsoft"},{"product":"windows_8.1","vendor":"microsoft"},{"product":"windows_rt_8.1","vendor":"microsoft"},{"product":"windows_server_2012","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"},{"product":"leap","vendor":"opensuse"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_linux_atomic_host","vendor":"redhat"},{"product":"openshift_container_platform","vendor":"redhat"},{"product":"suse_linux_enterprise_server","vendor":"suse"}],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions.","ecosystems":["SUSE:Enterprise Storage 5","SUSE:HPE Helion OpenStack 8","SUSE:Linux Enterprise High Performance Computing 15-ESPOS","SUSE:Linux Enterprise High Performance Computing 15-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP1","SUSE:Linux Enterprise Module for Basesystem 15 SP2","SUSE:Linux Enterprise Module for Server Applications 15 SP1","SUSE:Linux Enterprise Module for Server Applications 15 SP2","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 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: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":"GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim","id":"CVE-2020-15705","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","microsoft:windows_10","microsoft:windows_8.1","microsoft:windows_rt_8.1","microsoft:windows_server_2012","microsoft:windows_server_2016","microsoft:windows_server_2019","opensuse:leap","redhat:enterprise_linux","redhat:openshift_container_platform","suse:suse_linux_enterprise_server"],"type":"security_feature_bypass","year":"2020"},"n_packages":28,"n_references":20,"next":{"headline":"Use after free in grub2 in Ubuntu","id":"CVE-2020-15706"},"packages":[{"ecosystem":"SUSE:Enterprise Storage 5","fixed":["2.02-4.61.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Enterprise%20Storage%205","source":"SUSE-SU-2020:2304-1"},{"ecosystem":"SUSE:HPE Helion OpenStack 8","fixed":["2.02-4.61.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=HPE%20Helion%20OpenStack%208","source":"SUSE-SU-2020:2304-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-ESPOS","fixed":["2.02-19.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS","source":"SUSE-SU-2020:2303-1"},{"ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-LTSS","fixed":["2.02-19.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS","source":"SUSE-SU-2020:2303-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","fixed":["2.02-26.33.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP1","source":"SUSE-SU-2020:2307-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","fixed":["2.04-9.15.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2","source":"SUSE-SU-2020:2306-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP1","fixed":["2.02-26.33.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1","source":"SUSE-SU-2020:2307-1"},{"ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP2","fixed":["2.04-9.15.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2","source":"SUSE-SU-2020:2306-1"},{"ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","fixed":["2.00-0.66.21.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSS","source":"SUSE-SU-2020:14461-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","fixed":["2.02~beta2-115.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCL","source":"SUSE-SU-2020:2308-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","fixed":["2.02~beta2-115.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSS","source":"SUSE-SU-2020:2308-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","fixed":["2.02-4.61.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCL","source":"SUSE-SU-2020:2304-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","fixed":["2.02-4.61.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSS","source":"SUSE-SU-2020:2304-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP4-LTSS","fixed":["2.02-12.39.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS","source":"SUSE-SU-2020:2305-1"},{"ecosystem":"SUSE:Linux Enterprise Server 12 SP5","fixed":["2.02-12.39.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5","source":"SUSE-SU-2020:2305-1"},{"ecosystem":"SUSE:Linux Enterprise Server 15-LTSS","fixed":["2.02-19.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS","source":"SUSE-SU-2020:2303-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","fixed":["2.02~beta2-115.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2","source":"SUSE-SU-2020:2308-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","fixed":["2.02-4.61.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3","source":"SUSE-SU-2020:2304-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","fixed":["2.02-12.39.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4","source":"SUSE-SU-2020:2305-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","fixed":["2.02-12.39.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5","source":"SUSE-SU-2020:2305-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15","fixed":["2.02-19.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015","source":"SUSE-SU-2020:2303-1"},{"ecosystem":"SUSE:OpenStack Cloud 7","fixed":["2.02~beta2-115.56.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20OpenStack%20Cloud%207","source":"SUSE-SU-2020:2308-1"},{"ecosystem":"SUSE:OpenStack Cloud 8","fixed":["2.02-4.61.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20OpenStack%20Cloud%208","source":"SUSE-SU-2020:2304-1"},{"ecosystem":"SUSE:OpenStack Cloud 9","fixed":["2.02-12.39.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20OpenStack%20Cloud%209","source":"SUSE-SU-2020:2305-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 8","fixed":["2.02-4.61.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%208","source":"SUSE-SU-2020:2304-1"},{"ecosystem":"SUSE:OpenStack Cloud Crowbar 9","fixed":["2.02-12.39.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/suse/grub2\u0026distro=SUSE%20OpenStack%20Cloud%20Crowbar%209","source":"SUSE-SU-2020:2305-1"},{"ecosystem":"openSUSE:Leap 15.1","fixed":["2.02-lp151.21.27.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/opensuse/grub2\u0026distro=openSUSE%20Leap%2015.1","source":"openSUSE-SU-2020:1280-1"},{"ecosystem":"openSUSE:Leap 15.2","fixed":["2.04-lp152.7.9.1"],"introduced":["0"],"last_affected":[],"package":"grub2","purl":"pkg:rpm/opensuse/grub2\u0026distro=openSUSE%20Leap%2015.2","source":"openSUSE-SU-2020:1282-1"}],"prev":{"headline":"pppd arbitrary file read information disclosure vulnerability","id":"CVE-2020-15704"},"products":["grub2 in Ubuntu"],"published":"2020-07-29","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":"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":"2024-09-17","vendors":["Ubuntu"]},"summary":"Attackers can bypass Secure Boot to load unsigned kernels when GRUB is booted directly without shim in specific configurations.","url":"https://insights.sbomify.com/CVE-2020-15705/"}