CVE-2009-1895

{"id": "CVE-2009-1895", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2009-07-16T15:30:00.703", "references": [{"url": "http://blog.cr0.org/2009/06/bypassing-linux-null-pointer.html", "tags": ["Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f9fabcb58a6d26d6efde842d1703ac7cfa9427b6", "source": "secalert@redhat.com"}, {"url": "http://patchwork.kernel.org/patch/32598/", "tags": ["Patch", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/35801", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/36045", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/36051", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/36054", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/36116", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/36131", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/36759", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://secunia.com/advisories/37471", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://wiki.rpath.com/Advisories:rPSA-2009-0111", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.debian.org/security/2009/dsa-1844", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.debian.org/security/2009/dsa-1845", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc3", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:051", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.osvdb.org/55807", "tags": ["Broken Link"], "source": "secalert@redhat.com"}, {"url": "http://www.redhat.com/support/errata/RHSA-2009-1193.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.redhat.com/support/errata/RHSA-2009-1438.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/archive/1/505254/100/0/threaded", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/archive/1/507985/100/0/threaded", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/archive/1/512019/100/0/threaded", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/35647", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "http://www.ubuntu.com/usn/usn-807-1", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.vmware.com/security/advisories/VMSA-2009-0016.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.vupen.com/english/advisories/2009/1866", "tags": ["Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.vupen.com/english/advisories/2009/3316", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugs.launchpad.net/bugs/cve/2009-1895", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11768", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7826", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9453", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://rhn.redhat.com/errata/RHSA-2009-1540.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://rhn.redhat.com/errata/RHSA-2009-1550.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00166.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00223.html", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-16"}]}], "descriptions": [{"lang": "en", "value": "The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR)."}, {"lang": "es", "value": "El subsistema de personalidad en el Linux kernel anterior a v2.6.31-rc3 tiene establecido que PER_CLEAR_ON_SETID no borre las banderas ADDR_COMPAT_LAYOUT y MMAP_PAGE_ZERO cuando ejecuta un programa setuid o setgid, lo que facilita a usuarios locales aprovechar los detalles del uso actual de memoria para (1) llevar a cabo ataques de deferencia a punteros NULOS, (2) evitar el mecanismo de protecci\u00f3n mmap_min_addr o (3) rechazar aleatoriamente el espacio en la capa de direcciones (ASLR)."}], "lastModified": "2023-02-13T02:20:14.140", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EA80C8C8-30E5-4DC6-B3CC-2BA506FBEC8D", "versionEndIncluding": "2.6.31"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.31:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29C4A364-ED36-4AC8-AD1E-8BD18DD9324D"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:2.6.31:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4049867A-E3B2-4DC1-8966-0477E6A5D582"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0F92AB32-E7DE-43F4-B877-1F41FA162EC7"}, {"criteria": "cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C757774-08E7-40AA-B532-6F705C8F7639"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "5C18C3CD-969B-4AA3-AE3A-BA4A188F8BFF"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "C91D2DBF-6DA7-4BA2-9F29-8BD2725A4701"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4747CC68-FAF4-482F-929A-9DA6C24CB663"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A5D026D0-EF78-438D-BEDD-FC8571F3ACEB"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}