{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-19768 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2019-19768 is a high-severity use after free vulnerability in Linux kernel, published on 12 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-19768 and fix it if it is affected.\n\nWhat it is: CVE-2019-19768 is a high-severity use after free vulnerability in Linux kernel, published on 12 Dec 2019. 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-2019-19768 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-2019-19768/ (Markdown: https://insights.sbomify.com/CVE-2019-19768/index.md)","id":"CVE-2019-19768","markdown":"https://insights.sbomify.com/CVE-2019-19768/index.md","name":"CVE-2019-19768","record":{"aliases":["DEBIAN-CVE-2019-19768","GHSA-j7c5-8q8x-hgwf","RHSA-2020:1966","UBUNTU-CVE-2019-19768"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel","requires_auth":"none","summary":"A use-after-free vulnerability in the Linux kernel's blktrace function allows attackers to potentially execute code or escalate privileges.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer).","ecosystems":["Red Hat:rhel_e4s:8.0::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":"Use after free in n/a","id":"CVE-2019-19768","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2019"},"n_packages":25,"n_references":11,"next":{"headline":"Use after free in n/a","id":"CVE-2019-19769"},"packages":[{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"bpftool","purl":"pkg:rpm/redhat/bpftool","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"bpftool-debuginfo","purl":"pkg:rpm/redhat/bpftool-debuginfo","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-whitelists","purl":"pkg:rpm/redhat/kernel-abi-whitelists","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-core","purl":"pkg:rpm/redhat/kernel-core","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-core","purl":"pkg:rpm/redhat/kernel-debug-core","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules","purl":"pkg:rpm/redhat/kernel-debug-modules","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules-extra","purl":"pkg:rpm/redhat/kernel-debug-modules-extra","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-ppc64le","purl":"pkg:rpm/redhat/kernel-debuginfo-common-ppc64le","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/redhat/kernel-devel","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/redhat/kernel-doc","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-modules","purl":"pkg:rpm/redhat/kernel-modules","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-modules-extra","purl":"pkg:rpm/redhat/kernel-modules-extra","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-tools","purl":"pkg:rpm/redhat/kernel-tools","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-tools-debuginfo","purl":"pkg:rpm/redhat/kernel-tools-debuginfo","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"kernel-tools-libs","purl":"pkg:rpm/redhat/kernel-tools-libs","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"perf","purl":"pkg:rpm/redhat/perf","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"perf-debuginfo","purl":"pkg:rpm/redhat/perf-debuginfo","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"python3-perf","purl":"pkg:rpm/redhat/python3-perf","source":"RHSA-2020:1966"},{"ecosystem":"Red Hat:rhel_e4s:8.0::baseos","fixed":["0:4.18.0-80.18.1.el8_0"],"introduced":["0"],"last_affected":[],"package":"python3-perf-debuginfo","purl":"pkg:rpm/redhat/python3-perf-debuginfo","source":"RHSA-2020:1966"}],"prev":{"headline":"Use after free in n/a","id":"CVE-2019-19767"},"products":["n/a"],"published":"2019-12-12","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":"A use-after-free vulnerability in the Linux kernel's blktrace function allows attackers to potentially execute code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2019-19768/"}