{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2016-01-22T00:00:00", "descriptions": [{"lang": "en", "value": "The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-11-03T18:57:01", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"name": "79903", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/79903"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4"}, {"name": "USN-2911-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2911-1"}, {"name": "USN-2890-3", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2890-3"}, {"name": "SUSE-SU-2016:1102", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1291197"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/torvalds/linux/commit/b4a1b4f5047e4f54e194681125c74c0aa64d637d"}, {"name": "USN-2911-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2911-2"}, {"name": "SUSE-SU-2016:2074", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html"}, {"name": "USN-2890-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2890-2"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://security-tracker.debian.org/tracker/CVE-2015-7550"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d"}, {"name": "USN-2890-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2890-1"}, {"name": "DSA-3434", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "http://www.debian.org/security/2016/dsa-3434"}, {"name": "USN-2888-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2888-1"}, {"name": "SUSE-SU-2016:0911", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html"}]}}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2015-7550", "datePublished": "2016-02-08T02:00:00", "dateReserved": "2015-09-29T00:00:00", "dateUpdated": "2017-11-03T18:57:01", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "35E3DC8E-8900-4874-A272-E3EC1174360B", "versionEndIncluding": "4.3.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls."}, {"lang": "es", "value": "La funci\u00f3n keyctl_read_key en security/keys/keyctl.c en el kernel de Linux en versiones anteriores a 4.3.4 no utiliza adecuadamente un sem\u00e1foro, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (referencia a puntero NULL y ca\u00edda del sistema) o posiblemente tiene otro impacto no especificado a trav\u00e9s de una aplicaci\u00f3n manipulada que aprovecha una condici\u00f3n de carrera entre llamadas keyctl_revoke y keyctl_read."}], "evaluatorComment": "<a href=\"http://cwe.mitre.org/data/definitions/476.html\">CWE-476: NULL Pointer Dereference</a>", "id": "CVE-2015-7550", "lastModified": "2017-11-04T01:29:09.457", "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"}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2016-02-08T03:59:02.010", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d"}, {"source": "secalert@redhat.com", "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html"}, {"source": "secalert@redhat.com", "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html"}, {"source": "secalert@redhat.com", "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html"}, {"source": "secalert@redhat.com", "url": "http://www.debian.org/security/2016/dsa-3434"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/79903"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-2888-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-2890-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-2890-2"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-2890-3"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-2911-1"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-2911-2"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1291197"}, {"source": "secalert@redhat.com", "url": "https://github.com/torvalds/linux/commit/b4a1b4f5047e4f54e194681125c74c0aa64d637d"}, {"source": "secalert@redhat.com", "url": "https://security-tracker.debian.org/tracker/CVE-2015-7550"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}, {"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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