{"answers":{"affected":"It affects 10 products.","exploited":"There is no known exploitation of CVE-2020-14356 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-14356 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 19 Aug 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-2020-14356 and fix it if it is affected.\n\nWhat it is: CVE-2020-14356 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 19 Aug 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-2020-14356 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-2020-14356/ (Markdown: https://insights.sbomify.com/CVE-2020-14356/index.md)","id":"CVE-2020-14356","markdown":"https://insights.sbomify.com/CVE-2020-14356/index.md","name":"CVE-2020-14356","record":{"aliases":["DEBIAN-CVE-2020-14356","GHSA-gm74-x573-mg64","ROOT-OS-UBUNTU-2204-CVE-2020-14356","ROOT-OS-UBUNTU-2404-CVE-2020-14356","UBUNTU-CVE-2020-14356","USN-4484-1"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A local attacker can exploit a null pointer dereference in the Linux kernel cgroupv2 subsystem to crash the system or escalate privileges.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"},{"product":"active_iq_unified_manager","vendor":"netapp"},{"product":"cloud_backup","vendor":"netapp"},{"product":"hci_management_node","vendor":"netapp"},{"product":"solidfire","vendor":"netapp"},{"product":"solidfire_baseboard_management_controller_firmware","vendor":"netapp"},{"product":"leap","vendor":"opensuse"},{"product":"enterprise_linux","vendor":"redhat"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2022-04-23","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2022-04-23T06:45:44Z","kind":"github_poc","ref":"https://github.com/ShaikUsaf/linux-4.19.72_CVE-2020-14356","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"Null dereference in Kernel","id":"CVE-2020-14356","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","netapp:active_iq_unified_manager","netapp:cloud_backup","netapp:hci_management_node","netapp:solidfire","netapp:solidfire_baseboard_management_controller_firmware","opensuse:leap","redhat:enterprise_linux"],"type":"null_dereference","year":"2020"},"n_packages":0,"n_references":12,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2020-14357"},"packages":[],"prev":{"headline":"Memory corruption in spice","id":"CVE-2020-14355"},"products":["Kernel"],"published":"2020-08-19","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":"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"A local attacker can exploit a null pointer dereference in the Linux kernel cgroupv2 subsystem to crash the system or escalate privileges.","url":"https://insights.sbomify.com/CVE-2020-14356/"}