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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "76630B45-B590-4651-972E-F938A83010C0", "versionEndExcluding": "2.6.37", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, which allows local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write system calls."}, {"lang": "es", "value": "La implementaci\u00f3n del sistema de ficheros proc en el Kernel de Linux v2.6.37 y anteriores no restringe el acceso a un proceso del \u00e1rbol del directorio /proc despu\u00e9s de realizar este un proceso exec en un programa setuid, permite a usuarios locales obtener informaci\u00f3n sensible o provocar una denegaci\u00f3n de servicio a trav\u00e9s de llamadas open, lseek, read y write al sistema."}], "id": "CVE-2011-1020", "lastModified": "2020-08-12T16:35:27.087", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-02-28T16:00:01.930", "references": [{"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://openwall.com/lists/oss-security/2011/02/24/18"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://openwall.com/lists/oss-security/2011/02/25/2"}, {"source": "secalert@redhat.com", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "http://seclists.org/fulldisclosure/2011/Jan/421"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://secunia.com/advisories/43496"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "http://securityreason.com/securityalert/8107"}, {"source": "secalert@redhat.com", "tags": ["Exploit", "Third Party Advisory"], "url": "http://www.halfdog.net/Security/2011/SuidBinariesAndProcInterface/"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/46567"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/65693"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lkml.org/lkml/2011/2/10/21"}, {"source": "secalert@redhat.com", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "https://lkml.org/lkml/2011/2/7/368"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lkml.org/lkml/2011/2/7/404"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lkml.org/lkml/2011/2/7/414"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lkml.org/lkml/2011/2/7/466"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lkml.org/lkml/2011/2/7/474"}, {"source": "secalert@redhat.com", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://lkml.org/lkml/2011/2/9/417"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Kees Cook for reporting this issue.", "affected_release": [{"advisory": "RHSA-2012:0007", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "kernel-0:2.6.18-274.17.1.el5", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-01-10T00:00:00Z"}, {"advisory": "RHSA-2011:1530", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "kernel-0:2.6.32-220.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2011-12-05T00:00:00Z"}, {"advisory": "RHSA-2012:0116", "cpe": "cpe:/o:redhat:rhel_eus:6.1", "package": "kernel-0:2.6.32-131.25.1.el6", "product_name": "Red Hat Enterprise Linux 6.1 EUS - Server Only", "release_date": "2012-02-15T00:00:00Z"}, {"advisory": "RHSA-2011:1253", "cpe": "cpe:/a:redhat:enterprise_mrg:2:server:el6", "package": "kernel-rt-0:2.6.33.9-rt31.75.el6rt", "product_name": "Red Hat Enterprise MRG 2", "release_date": "2011-09-12T00:00:00Z"}], "bugzilla": {"description": "kernel: no access restrictions of /proc/pid/* after setuid program exec", "id": "680358", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=680358"}, "csaw": false, "cvss": {"cvss_base_score": "3.6", "cvss_scoring_vector": "AV:L/AC:L/Au:N/C:P/I:P/A:N", "status": "verified"}, "details": ["The proc filesystem implementation in the Linux kernel 2.6.37 and earlier does not restrict access to the /proc directory tree of a process after this process performs an exec of a setuid program, which allows local users to obtain sensitive information or cause a denial of service via open, lseek, read, and write system calls."], "name": "CVE-2011-1020", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/a:redhat:enterprise_mrg:1", "fix_state": "Affected", "package_name": "realtime-kernel", "product_name": "Red Hat Enterprise MRG 1"}], "public_date": "2011-02-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-1020\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-1020"], "statement": "Red Hat Enterprise Linux 4 is now in Production 3 of the maintenance life-cycle, https://access.redhat.com/support/policy/updates/errata/, therefore the fix for this issue is not currently planned to be included in the future updates.\nThis has been addressed in Red Hat Enterprise Linux 5, 6 and Red Hat Enterprise MRG via RHSA-2012:0007, RHSA-2011:1530 and RHSA-2011:1253 respectively.", "threat_severity": "Moderate"}