CVE-2025-37948

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"negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narm64: bpf: Add BHB mitigation to the epilogue for cBPF programs\n\nA malicious BPF program may manipulate the branch history to influence\nwhat the hardware speculates will happen next.\n\nOn exit from a BPF program, emit the BHB mititgation sequence.\n\nThis is only applied for 'classic' cBPF programs that are loaded by\nseccomp."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: arm64: bpf: A\u00f1adir mitigaci\u00f3n de BHB al ep\u00edlogo de programas cBPF. Un programa BPF malicioso puede manipular el historial de ramificaciones para influir en lo que el hardware especula que ocurrir\u00e1 a continuaci\u00f3n. Al salir de un programa BPF, se emite la secuencia de mitigaci\u00f3n de BHB. Esto solo se aplica a programas cBPF cl\u00e1sicos cargados por seccomp."}], "id": "CVE-2025-37948", "lastModified": "2026-11-05T21:17:59.223", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-37948", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:45:35.502598Z", "version": "2.0.3"}}]}, "published": "2025-05-20T16:15:32.800", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/42a20cf51011788f04cf2adbcd7681f02bdb6c27"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/852b8ae934b5cbdc62496fa56ce9969aa2edda7f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8fe5c37b0e08a97cf0210bb75970e945aaaeebab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/993f63239c219696aef8887a4e7d3a16bf5a8ece"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c6a8735d841bcb7649734bb3a787bb174c67c0d8"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs", "id": "2367566", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2367566"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\narm64: bpf: Add BHB mitigation to the epilogue for cBPF programs\nA malicious BPF program may manipulate the branch history to influence\nwhat the hardware speculates will happen next.\nOn exit from a BPF program, emit the BHB mititgation sequence.\nThis is only applied for 'classic' cBPF programs that are loaded by\nseccomp."], "name": "CVE-2025-37948", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "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": "2025-05-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-37948\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-37948\nhttps://lore.kernel.org/linux-cve-announce/2025052000-CVE-2025-37948-2f8d@gregkh/T"], "statement": "Adds missing Spectre-BHB mitigation for cBPF programs on ARM64. The security impact is limited, because this is Low-risk side-channel vector: no direct exploit, but mitigates theoretical data leaks from seccomp-loaded filters.", "threat_severity": "Moderate"}

{"created": "2025-06-27T09:26:50.423484+00:00", "updated": "2025-06-27T09:26:50.423532+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}