{"answers":{"affected":"It affects 11 products.","exploited":"There is no known exploitation of CVE-2020-10711 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2020-10711 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 22 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-2020-10711 and fix it if it is affected.\n\nWhat it is: CVE-2020-10711 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 22 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-2020-10711 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-2020-10711/ (Markdown: https://insights.sbomify.com/CVE-2020-10711/index.md)","id":"CVE-2020-10711","markdown":"https://insights.sbomify.com/CVE-2020-10711/index.md","name":"CVE-2020-10711","record":{"aliases":["DEBIAN-CVE-2020-10711","RHSA-2020:2103","RHSA-2020:2125","UBUNTU-CVE-2020-10711"],"analysis":{"component_type":"kernel","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A remote attacker can crash the Linux kernel via a NULL pointer dereference in the SELinux CIPSO handling, causing denial of service.","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":"leap","vendor":"opensuse"},{"product":"3scale","vendor":"redhat"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"enterprise_linux_aus","vendor":"redhat"},{"product":"enterprise_linux_server_tus","vendor":"redhat"},{"product":"messaging_realtime_grid","vendor":"redhat"},{"product":"openstack","vendor":"redhat"},{"product":"virtualization_host","vendor":"redhat"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.","ecosystems":["Red Hat:enterprise_linux:6::client","Red Hat:enterprise_linux:6::computenode","Red Hat:enterprise_linux:6::server","Red Hat:enterprise_linux:6::workstation","Red Hat:enterprise_linux:8::baseos"],"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":"Null dereference in Kernel","id":"CVE-2020-10711","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","opensuse:leap","redhat:enterprise_linux","redhat:enterprise_linux_aus","redhat:enterprise_linux_server_tus","redhat:openstack","redhat:virtualization_host"],"type":"null_dereference","year":"2020"},"n_packages":69,"n_references":13,"next":{"headline":"Information Disclosure in OpenShift Container Platform","id":"CVE-2020-10712"},"packages":[{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2020:2103"},{"ecosystem":"Red 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Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"perf-debuginfo","purl":"pkg:rpm/redhat/perf-debuginfo","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf","purl":"pkg:rpm/redhat/python-perf","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::client","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"python-perf-debuginfo","purl":"pkg:rpm/redhat/python-perf-debuginfo","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::computenode","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2020:2103"},{"ecosystem":"Red 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Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-bootwrapper","purl":"pkg:rpm/redhat/kernel-bootwrapper","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-i686","purl":"pkg:rpm/redhat/kernel-debuginfo-common-i686","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-ppc64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-ppc64","source":"RHSA-2020:2103"},{"ecosystem":"Red Hat:enterprise_linux:6::server","fixed":["0:2.6.32-754.29.2.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-s390x","purl":"pkg:rpm/redhat/kernel-debuginfo-common-s390x","source":"RHSA-2020:2103"}],"prev":{"headline":"Information disclosure in foreman-installer","id":"CVE-2020-10710"},"products":["Kernel"],"published":"2020-05-22","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":"Red Hat","prefix":"RHSA"},{"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":["Red Hat"]},"summary":"A remote attacker can crash the Linux kernel via a NULL pointer dereference in the SELinux CIPSO handling, causing denial of service.","url":"https://insights.sbomify.com/CVE-2020-10711/"}