{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2017-2647 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2017-2647 is a high-severity vulnerability in Linux kernel, published on 31 Mar 2017. 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-2017-2647 and fix it if it is affected.\n\nWhat it is: CVE-2017-2647 is a high-severity vulnerability in Linux kernel, published on 31 Mar 2017. 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-2017-2647 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2017-2647/ (Markdown: https://insights.sbomify.com/CVE-2017-2647/index.md)","id":"CVE-2017-2647","markdown":"https://insights.sbomify.com/CVE-2017-2647/index.md","name":"CVE-2017-2647","record":{"aliases":["DEBIAN-CVE-2017-2647","GHSA-6723-4j9m-72qg","RHSA-2020:3836","UBUNTU-CVE-2017-2647"],"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":"Local attackers can exploit a NULL pointer dereference in the Linux kernel KEYS subsystem to escalate privileges or crash the system.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"}],"description":"The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.","ecosystems":["Red Hat:rhel_aus:6.6::server"],"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 n/a","id":"CVE-2017-2647","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2017"},"n_packages":7,"n_references":10,"next":{"headline":"Jenkins SSH Build Agents Plugin did not verify host keys","id":"CVE-2017-2648"},"packages":[{"ecosystem":"Red Hat:rhel_aus:6.6::server","fixed":["0:2.6.32-504.84.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2020:3836"},{"ecosystem":"Red Hat:rhel_aus:6.6::server","fixed":["0:2.6.32-504.84.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2020:3836"},{"ecosystem":"Red Hat:rhel_aus:6.6::server","fixed":["0:2.6.32-504.84.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2020:3836"},{"ecosystem":"Red Hat:rhel_aus:6.6::server","fixed":["0:2.6.32-504.84.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2020:3836"},{"ecosystem":"Red Hat:rhel_aus:6.6::server","fixed":["0:2.6.32-504.84.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2020:3836"},{"ecosystem":"Red Hat:rhel_aus:6.6::server","fixed":["0:2.6.32-504.84.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","source":"RHSA-2020:3836"},{"ecosystem":"Red Hat:rhel_aus:6.6::server","fixed":["0:2.6.32-504.84.1.el6"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/redhat/kernel-devel","source":"RHSA-2020:3836"}],"prev":{"headline":"Keycloak vulnerable to infinite loop based Denial of Service","id":"CVE-2017-2646"},"products":["n/a"],"published":"2017-03-31","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"Local attackers can exploit a NULL pointer dereference in the Linux kernel KEYS subsystem to escalate privileges or crash the system.","url":"https://insights.sbomify.com/CVE-2017-2647/"}