CVE-2016-1922

{"id": "CVE-2016-1922", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2016-12-29T22:59:00.370", "references": [{"url": "http://www.debian.org/security/2016/dsa-3469", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.debian.org/security/2016/dsa-3470", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.debian.org/security/2016/dsa-3471", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2016/01/16/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2016/01/16/6", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/81058", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1283934", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html", "tags": ["Patch", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://security.gentoo.org/glsa/201604-01", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.debian.org/security/2016/dsa-3469", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2016/dsa-3470", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.debian.org/security/2016/dsa-3471", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/01/16/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.openwall.com/lists/oss-security/2016/01/16/6", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "http://www.securityfocus.com/bid/81058", "tags": ["Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1283934", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html", "tags": ["Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.gentoo.org/glsa/201604-01", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue."}, {"lang": "es", "value": "QEMU (tambi\u00e9n conocido como Quick Emulator) construido con el soporte de invitados TPR optimization for 32-bit Windows es vulnerable a una falla de referencia puntero null. Ocurre mientras se hacen operaciones de escritura de puerto I/O a trav\u00e9s de interfaz hmp. En eso, 'current_cpu' permanece null, lo que lleva a una referencia de puntero null. Un usuario o proceso podr\u00eda usar esta falla para bloquear la instancia QEMU, resultando en un problema DoS."}], "lastModified": "2025-04-12T10:46:40.837", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1E0091D0-CCD9-4017-A266-32576814AE63", "versionEndIncluding": "2.5.1.1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"}, {"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}