{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2022-3534", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "assignerShortName": "VulDB", "dateUpdated": "2025-11-03T19:27:10.646Z", "dateReserved": "2022-10-17T00:00:00.000Z", "datePublished": "2022-10-17T00:00:00.000Z"}, "containers": {"cna": {"title": "Linux Kernel libbpf btf_dump.c btf_dump_name_dups use after free", "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2022-10-17T00:00:00.000Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211032."}], "affected": [{"vendor": "Linux", "product": "Kernel", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749"}, {"url": "https://vuldb.com/?id.211032"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "LOW", "baseScore": 5.5, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-119 Memory Corruption -> CWE-416 Use After Free", "cweId": "CWE-119"}]}], "x_generator": "vuldb.com"}, "adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749", "tags": ["x_transferred"]}, {"url": "https://vuldb.com/?id.211032", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00033.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:27:10.646Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-14T17:09:09.738096Z", "id": "CVE-2022-3534", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-15T13:43:46.329Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749", "tags": ["x_transferred"]}, {"url": "https://vuldb.com/?id.211032", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00033.html"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:27:10.646Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2022-3534", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-14T17:09:09.738096Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-14T17:09:11.300Z"}}], "cna": {"title": "Linux Kernel libbpf btf_dump.c btf_dump_name_dups use after free", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "Linux", "product": "Kernel", "versions": [{"status": "affected", "version": "n/a"}]}], "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749"}, {"url": "https://vuldb.com/?id.211032"}], "x_generator": "vuldb.com", "descriptions": [{"lang": "en", "value": "A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211032."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "CWE-119 Memory Corruption -> CWE-416 Use After Free"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2022-10-17T00:00:00.000Z"}}}, "cveMetadata": {"cveId": "CVE-2022-3534", "state": "PUBLISHED", "dateUpdated": "2025-11-03T19:27:10.646Z", "dateReserved": "2022-10-17T00:00:00.000Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2022-10-17T00:00:00.000Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*", "matchCriteriaId": "703AF700-7A70-47E2-BC3A-7FD03B3CA9C1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211032."}, {"lang": "es", "value": "Se ha encontrado una vulnerabilidad clasificada como cr\u00edtica en el Kernel de Linux. Est\u00e1 afectada la funci\u00f3n btf_dump_name_dups del archivo tools/lib/bpf/btf_dump.c del componente libbpf. La manipulaci\u00f3n conlleva a un uso de memoria previamente liberada. Es recomendado aplicar un parche para corregir este problema. El identificador de esta vulnerabilidad es VDB-211032"}], "id": "CVE-2022-3534", "lastModified": "2025-11-03T20:15:56.820", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "LOW", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 3.4, "source": "cna@vuldb.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-10-17T09:15:12.750", "references": [{"source": "cna@vuldb.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749"}, {"source": "cna@vuldb.com", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://vuldb.com/?id.211032"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00033.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required", "Third Party Advisory"], "url": "https://vuldb.com/?id.211032"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "cna@vuldb.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "Kernel: use-after-free in btf_dump_name_dups in tools/lib/bpf/btf_dump.c", "id": "2165706", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2165706"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.3", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-416", "details": ["A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211032.", "A use-after-free flaw was found in btf_dump_name_dups in tools/lib/bpf/btf_dump.c in libbpf in the Linux Kernel. This issue occurs because the key stored in the hash table name_map is a string address, and the string memory is allocated by realloc() function. When the memory is resized by realloc() later, the old memory may be freed."], "mitigation": {"lang": "en:us", "value": "The default Red Hat Enterprise Linux kernel prevents unprivileged users from being able to use eBPF by the kernel.unprivileged_bpf_disabled sysctl. This would require a privileged user with CAP_SYS_ADMIN or root to be able to abuse this flaw reducing its attack space.\nFor the Red Hat Enterprise Linux 8 to confirm the current state, inspect the sysctl with the command:\n# cat /proc/sys/kernel/unprivileged_bpf_disabled\nThe setting of 1 would mean that unprivileged users can not use eBPF, mitigating the flaw."}, "name": "CVE-2022-3534", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2022-10-13T06:30:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-3534\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-3534\nhttps://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=93c660ca40b5d2f7c1b1626e955a8e9fa30e0749"], "threat_severity": "Low"}

{}