{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-0461 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-0461 is a high-severity use after free vulnerability in Linux kernel, published on 28 Feb 2023. 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-2023-0461 and fix it if it is affected.\n\nWhat it is: CVE-2023-0461 is a high-severity use after free vulnerability in Linux kernel, published on 28 Feb 2023. 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-2023-0461 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-2023-0461/ (Markdown: https://insights.sbomify.com/CVE-2023-0461/index.md)","id":"CVE-2023-0461","markdown":"https://insights.sbomify.com/CVE-2023-0461/index.md","name":"CVE-2023-0461","record":{"aliases":["AZL-25353","DEBIAN-CVE-2023-0461","GHSA-222x-4qhm-7h5f","RHSA-2023:1841","RHSA-2023:1923","UBUNTU-CVE-2023-0461"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux Kernel","requires_auth":"low_privilege","summary":"A use-after-free in the Linux Kernel allows local privilege escalation when TLS or ESPINTCP is enabled, requiring a kernel patch.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Google","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","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-416","name":"Use After Free"}],"description":"There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege.\n\nThere is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock.\n\nWhen CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable.\n\nThe setsockopt TCP_ULP operation does not require any privilege.\n\nWe recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c","ecosystems":["Red Hat:rhel_eus:8.6::baseos","Red Hat:rhel_eus:8.6::crb","Red Hat:rhev_hypervisor:4.4::el8"],"exploits":{"exploitdb":0,"first_seen":"2025-08-03","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-08-03T08:12:39Z","kind":"github_poc","ref":"https://github.com/b1nhack/CVE-2023-0461","stars":0,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"Use-after-free vulnerability in the Linux Kernel","id":"CVE-2023-0461","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2023"},"n_packages":70,"n_references":4,"next":{"headline":"Arbitrary code execution through yaml global parameters","id":"CVE-2023-0462"},"packages":[{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"bpftool","purl":"pkg:rpm/redhat/bpftool","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"bpftool-debuginfo","purl":"pkg:rpm/redhat/bpftool-debuginfo","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/redhat/kernel","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-stablelists","purl":"pkg:rpm/redhat/kernel-abi-stablelists","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-core","purl":"pkg:rpm/redhat/kernel-core","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/redhat/kernel-debug","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-core","purl":"pkg:rpm/redhat/kernel-debug-core","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-debuginfo","purl":"pkg:rpm/redhat/kernel-debug-debuginfo","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/redhat/kernel-debug-devel","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules","purl":"pkg:rpm/redhat/kernel-debug-modules","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules-extra","purl":"pkg:rpm/redhat/kernel-debug-modules-extra","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo","purl":"pkg:rpm/redhat/kernel-debuginfo","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-aarch64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-aarch64","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-ppc64le","purl":"pkg:rpm/redhat/kernel-debuginfo-common-ppc64le","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-s390x","purl":"pkg:rpm/redhat/kernel-debuginfo-common-s390x","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-debuginfo-common-x86_64","purl":"pkg:rpm/redhat/kernel-debuginfo-common-x86_64","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/redhat/kernel-devel","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/redhat/kernel-doc","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-modules","purl":"pkg:rpm/redhat/kernel-modules","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-modules-extra","purl":"pkg:rpm/redhat/kernel-modules-extra","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-tools","purl":"pkg:rpm/redhat/kernel-tools","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-tools-debuginfo","purl":"pkg:rpm/redhat/kernel-tools-debuginfo","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-tools-libs","purl":"pkg:rpm/redhat/kernel-tools-libs","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump","purl":"pkg:rpm/redhat/kernel-zfcpdump","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-core","purl":"pkg:rpm/redhat/kernel-zfcpdump-core","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-debuginfo","purl":"pkg:rpm/redhat/kernel-zfcpdump-debuginfo","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-devel","purl":"pkg:rpm/redhat/kernel-zfcpdump-devel","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-modules","purl":"pkg:rpm/redhat/kernel-zfcpdump-modules","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:4.18.0-372.52.1.el8_6"],"introduced":["0"],"last_affected":[],"package":"kernel-zfcpdump-modules-extra","purl":"pkg:rpm/redhat/kernel-zfcpdump-modules-extra","source":"RHSA-2023:1841"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-6.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_32_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_32_1","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-6.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_32_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_32_1-debuginfo","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-6.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_32_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_32_1-debugsource","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-5.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_36_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_36_1","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-5.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_36_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_36_1-debuginfo","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-5.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_36_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_36_1-debugsource","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-5.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_40_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_40_1","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-5.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_40_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_40_1-debuginfo","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-5.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_40_1-debugsource","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_40_1-debugsource","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-4.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_41_1","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_41_1","source":"RHSA-2023:1923"},{"ecosystem":"Red Hat:rhel_eus:8.6::baseos","fixed":["0:1-4.el8_6"],"introduced":["0"],"last_affected":[],"package":"kpatch-patch-4_18_0-372_41_1-debuginfo","purl":"pkg:rpm/redhat/kpatch-patch-4_18_0-372_41_1-debuginfo","source":"RHSA-2023:1923"}],"prev":{"headline":"Remote code execution in YouTube Android Player API SDK","id":"CVE-2023-0460"},"products":["Linux Kernel"],"published":"2023-02-28","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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-13","vendors":["Linux"]},"summary":"A use-after-free in the Linux Kernel allows local privilege escalation when TLS or ESPINTCP is enabled, requiring a kernel patch.","url":"https://insights.sbomify.com/CVE-2023-0461/"}