CVE-2012-4565

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true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.4.12:*:*:*:*:*:*:*", "matchCriteriaId": "F6D8EE51-02C1-47BC-A92C-0A8ABEFD28FF", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.4.13:*:*:*:*:*:*:*", "matchCriteriaId": "7F20A5D7-3B38-4911-861A-04C8310D5916", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.4.14:*:*:*:*:*:*:*", "matchCriteriaId": "D472DE3A-71D8-4F40-9DDE-85929A2B047D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.4.15:*:*:*:*:*:*:*", "matchCriteriaId": "B2AED943-65A8-4FDB-BBD0-CCEF8682A48C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.4.16:*:*:*:*:*:*:*", "matchCriteriaId": "D4640185-F3D8-4575-A71D-4C889A93DE2C", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:3.4.17:*:*:*:*:*:*:*", "matchCriteriaId": "144CCF7C-025E-4879-B2E7-ABB8E4390BE5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19, when the net.ipv4.tcp_congestion_control illinois setting is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats."}, {"lang": "es", "value": "La funci\u00f3n tcp_illinois_info en net/ipv4/tcp_illinois.c en el kernel de Linux antes de v3.4.19, cuando la opci\u00f3n net.ipv4.tcp_congestion_control illinois est\u00e1 habilitada, permite a usuarios locales provocar una denegaci\u00f3n de servicio (divisi\u00f3n por cero y ca\u00edda) mediante la lectura de estad\u00edsticas TCP.\r\n"}], "id": "CVE-2012-4565", "lastModified": "2026-06-16T23:45:24.550", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.7, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-12-21T11:47:36.627", "references": [{"source": "secalert@redhat.com", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664"}, {"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html"}, {"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2012-1580.html"}, {"source": "secalert@redhat.com", "url": "http://secunia.com/advisories/51409"}, {"source": "secalert@redhat.com", "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.19"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2012/10/31/5"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/56346"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1644-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1645-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1646-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1647-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1648-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1649-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1650-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1651-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1652-1"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=871848"}, {"source": "secalert@redhat.com", "tags": ["Exploit"], "url": 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{"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "https://github.com/torvalds/linux/commit/8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-189"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "This issue was discovered by Rodrigo Freire (Red Hat).", "affected_release": [{"advisory": "RHSA-2012:1580", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-279.19.1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-12-18T00:00:00Z"}, {"advisory": "RHSA-2012:1491", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:3.2.33-rt50.66.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2012-12-04T00:00:00Z"}], "bugzilla": {"description": "kernel: net: divide by zero in tcp algorithm illinois", "id": "871848", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=871848"}, "csaw": false, "cvss": {"cvss_base_score": "4.7", "cvss_scoring_vector": "AV:L/AC:M/Au:N/C:N/I:N/A:C", "status": "verified"}, "details": ["The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19, when the net.ipv4.tcp_congestion_control illinois setting is enabled, allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats."], "name": "CVE-2012-4565", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2012-10-31T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-4565\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-4565"], "statement": "This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 5.\nThis issue did affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 6.\nThis issue did affect the version of Linux kernel as shipped with Red Hat Enterprise MRG 2.", "threat_severity": "Moderate"}

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