{"containers": {"cna": {"affected": [{"product": "Linux kernel through v4.14-rc5", "vendor": "n/a", "versions": [{"status": "affected", "version": "Linux kernel through v4.14-rc5"}]}], "datePublic": "2017-11-22T00:00:00", "descriptions": [{"lang": "en", "value": "The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "description": "CWE-400", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2019-11-13T02:06:45", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058"}, {"name": "101911", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/101911"}, {"name": "[debian-lts-announce] 20171210 [SECURITY] [DLA 1200-1] linux security update", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html"}, {"name": "USN-3583-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/3583-2/"}, {"name": "RHSA-2018:1854", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2018:1854"}, {"name": "USN-3582-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/3582-1/"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467"}, {"name": "RHSA-2018:1062", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2018:1062"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467"}, {"name": "RHSA-2018:0654", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2018:0654"}, {"name": "USN-3583-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/3583-1/"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1495089"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://seclists.org/oss-sec/2017/q4/52"}, {"name": "RHSA-2018:0676", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2018:0676"}, {"name": "USN-3582-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/3582-2/"}, {"name": "RHSA-2019:1170", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2019:1170"}, {"name": "RHSA-2019:1190", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2019:1190"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://support.f5.com/csp/article/K93472064?utm_source=f5support&amp%3Butm_medium=RSS"}]}}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2017-12190", "datePublished": "2017-11-22T18:00:00", "dateReserved": "2017-08-01T00:00:00", "dateUpdated": "2019-11-13T02:06:45", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "11C6B206-8716-4A16-81BD-F3B8C8ACBE19", "versionEndIncluding": "4.13.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The bio_map_user_iov and bio_unmap_user functions in block/bio.c in the Linux kernel before 4.13.8 do unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition."}, {"lang": "es", "value": "Las funciones bio_map_user_iov y bio_unmap_user en block/bio.c en el kernel de Linux en versiones anteriores a la 4.13.8 realizan un refcount no equilibrado cuando un vector SCSI I/O tiene b\u00faferes peque\u00f1os consecutivos que pertenecen a la misma p\u00e1gina. La funci\u00f3n bio_add_pc_page los combina en uno solo, pero la referencia de la p\u00e1gina nunca se anula. Esto provoca una fuga de memoria y un posible bloqueo del sistema (explotable contra el host del sistema operativo por un usuario invitado del sistema operativo, si se pasa un disco SCSI a una m\u00e1quina virtual) debido a una condici\u00f3n de falta de memoria."}], "id": "CVE-2017-12190", "lastModified": "2023-02-12T23:27:30.660", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 2.0, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-11-22T18:29:00.477", "references": [{"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=95d78c28b5a85bacbc29b8dba7c04babb9b0d467"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Mailing List", "Third Party Advisory"], "url": "http://seclists.org/oss-sec/2017/q4/52"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.8"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/101911"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2018:0654"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2018:0676"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2018:1062"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2018:1854"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2019:1170"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2019:1190"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1495089"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/2b04e8f6bbb196cab4b232af0f8d48ff2c7a8058"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking", "Patch", "Third Party Advisory"], "url": "https://github.com/torvalds/linux/commit/95d78c28b5a85bacbc29b8dba7c04babb9b0d467"}, {"source": "secalert@redhat.com", "url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html"}, {"source": "secalert@redhat.com", "url": "https://support.f5.com/csp/article/K93472064?utm_source=f5support&amp%3Butm_medium=RSS"}, {"source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3582-1/"}, {"source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3582-2/"}, {"source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3583-1/"}, {"source": "secalert@redhat.com", "url": "https://usn.ubuntu.com/3583-2/"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "secalert@redhat.com", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-772"}], "source": "nvd@nist.gov", "type": "Secondary"}]}

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