CVE-2023-53032

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Cuando first_ip es 0, last_ip es 0xFFFFFFFF y netmask es 31, el valor de una expresi\u00f3n aritm\u00e9tica 2 &lt;&lt; (netmask - mask_bits - 1) est\u00e1 sujeto a desbordamiento debido a un error al convertir operandos a un tipo de dato mayor antes de realizar la operaci\u00f3n aritm\u00e9tica. Tenga en cuenta que esto es inofensivo, ya que el valor se comprobar\u00e1 en el siguiente paso. Encontrado por InfoTeCS en nombre del Centro de Verificaci\u00f3n de Linux (linuxtesting.org) con SVACE."}], "id": "CVE-2023-53032", "lastModified": "2026-11-05T21:17:07.747", "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-2023-53032", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:14:51.390619Z", "version": "2.0.3"}}]}, "published": "2025-03-27T17:15:52.997", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/e88865876d47c790be0d5e23973499d75d034364"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/feefb33eefa166fc3e0fd17547b0bc0cb3baced9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.", "id": "2355459", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2355459"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.\nWhen first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of\nan arithmetic expression 2 << (netmask - mask_bits - 1) is subject\nto overflow due to a failure casting operands to a larger data type\nbefore performing the arithmetic.\nNote that it's harmless since the value will be checked at the next step.\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2023-53032", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "2025-03-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53032\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53032\nhttps://lore.kernel.org/linux-cve-announce/2025032721-CVE-2023-53032-70ce@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T22:31:30.659891+00:00", "updated": "2025-07-12T22:31:30.659942+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}