CVE-2015-2830

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"descriptions": [{"lang": "en", "value": "arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16."}, {"lang": "es", "value": "arch/x86/kernel/entry_64.S en el kernel de Linux anterior a 3.19.2 no impide que el indicador TS_COMPAT llegue a una tarea de modo de usuario, lo que podr\u00eda permitir a usuarios locales evadir el mecanismo de protecci\u00f3n de seccomp o de auditoria a trav\u00e9s de una aplicaci\u00f3n manipulada que utiliza la llamada de sistema (1) bifurcada o (2) cerrada, tal y como fue demostrado por un ataque sobre seccomp anterior a 3.16."}], "id": "CVE-2015-2830", "lastModified": "2026-06-17T00:24:50.347", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 1.9, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}]}, "published": "2015-05-27T10:59:06.127", "references": [{"source": "cve@mitre.org", "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html"}, {"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html"}, {"source": "cve@mitre.org", "url": 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"http://www.ubuntu.com/usn/USN-2632-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1208598"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2015:1221", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-504.30.3.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2015-07-14T00:00:00Z"}, {"advisory": "RHSA-2015:1139", "cpe": "cpe:/a:redhat:rhel_extras_rt:7", "package": "kernel-rt-0:3.10.0-229.7.2.rt56.141.6.el7_1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-06-23T00:00:00Z"}, {"advisory": "RHSA-2015:1137", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "kernel-0:3.10.0-229.7.2.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-06-23T00:00:00Z"}, {"advisory": "RHSA-2015:1138", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-1:3.10.0-229.rt56.153.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2015-06-23T00:00:00Z"}], "bugzilla": {"description": "kernel: int80 fork from 64-bit tasks mishandling", "id": "1208598", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1208598"}, "csaw": false, "cvss": {"cvss_base_score": "1.9", "cvss_scoring_vector": "AV:L/AC:M/Au:N/C:N/I:P/A:N", "status": "verified"}, "cwe": "CWE-393", "details": ["arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.", "A flaw was found in the way the Linux kernel's 32-bit emulation implementation handled forking or closing of a task with an 'int80' entry. A local user could potentially use this flaw to escalate their privileges on the system."], "name": "CVE-2015-2830", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2015-04-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-2830\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-2830"], "statement": "This issue affects the versions of the Linux kernel as shipped with\nRed Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for the respective releases may address this issue.\nRed Hat Enterprise Linux 5 is now in Production 3 Phase of the support and\nmaintenance life cycle. This has been rated as having Low security\nimpact and is not currently planned to be addressed in future updates. For\nadditional information, refer to the Red Hat Enterprise Linux Life\nCycle: https://access.redhat.com/support/policy/updates/errata/.", "threat_severity": "Low"}

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