CVE-2012-2136

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "11F3BF95-7AFA-4678-8F7C-1B29BDA05822", "versionEndExcluding": "3.0.37", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8B4D48FD-F61E-4443-A0CD-A7A5D139C6D3", "versionEndExcluding": "3.2.23", "versionStartIncluding": "3.1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "478D8BEC-1557-40DC-8AB2-42424B19D0A9", "versionEndExcluding": "3.4.5", "versionStartIncluding": "3.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The sock_alloc_send_pskb function in net/core/sock.c in the Linux kernel before 3.4.5 does not properly validate a certain length value, which allows local users to cause a denial of service (heap-based buffer overflow and system crash) or possibly gain privileges by leveraging access to a TUN/TAP device."}, {"lang": "es", "value": "La funci\u00f3n sock_alloc_send_pskb en net/core/sock.c en el kernel de linux anterior a v3.4.5 no valida correctamente ciertos valores de longitud, permitiendo a usuarios locales causar una denegaci\u00f3n de servicio (desbordamiento de b\u00fafer basado en el heap o ca\u00edda del sistema) o ganar privilegios mediante el acceso a un dispositivo TUN/TAP"}], "id": "CVE-2012-2136", "lastModified": "2026-06-16T23:41:03.817", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, 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{"affected_release": [{"advisory": "RHSA-2012:0690", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-308.8.1.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-05-29T00:00:00Z"}, {"advisory": "RHSA-2012:1087", "cpe": "cpe:/o:redhat:rhel_eus:5.6", "package": "kernel-0:2.6.18-238.40.1.el5", "product_name": "Red Hat Enterprise Linux 5.6 EUS - Server Only", "release_date": "2012-07-17T00:00:00Z"}, {"advisory": "RHSA-2012:0743", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-220.23.1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-06-18T00:00:00Z"}], "bugzilla": {"description": "kernel: net: insufficient data_len validation in sock_alloc_send_pskb()", "id": "816289", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=816289"}, "csaw": false, "cvss": {"cvss_base_score": "6.2", "cvss_scoring_vector": "AV:L/AC:H/Au:N/C:C/I:C/A:C", "status": "verified"}, "cwe": "CWE-228->CWE-119", "details": ["The sock_alloc_send_pskb function in net/core/sock.c in the Linux kernel before 3.4.5 does not properly validate a certain length value, which allows local users to cause a denial of service (heap-based buffer overflow and system crash) or possibly gain privileges by leveraging access to a TUN/TAP device."], "name": "CVE-2012-2136", "package_state": [{"cpe": "cpe:/a:redhat:enterprise_mrg:2", "fix_state": "Not affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 2"}], "public_date": "2012-05-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-2136\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-2136"], "threat_severity": "Important"}

{}