CVE-2016-7995

Memory leak in the ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption) via a large number of crafted buffer page select (PG) indexes.

CVSS v3 6.0 MEDIUM
CVSS v2.0 2.1 LOW

6.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.5 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b16c129daf0fed91febbb88de23dae8271c8898a
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/07/3	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/08/4	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/93454	Third Party Advisory VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg06609.html	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*

History

No history.

Information

Published : 2016-12-10 00:59

Updated : 2024-02-04 19:11

NVD link : CVE-2016-7995

Mitre link : CVE-2016-7995

CVE.ORG link : CVE-2016-7995

JSON object : View

Products Affected

qemu

qemu

opensuse

leap

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

{"id": "CVE-2016-7995", "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": "CHANGED", "version": "3.1", "baseScore": 6.0, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 1.5}]}, "published": "2016-12-10T00:59:22.763", "references": [{"url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b16c129daf0fed91febbb88de23dae8271c8898a", "source": "secalert@redhat.com"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/07/3", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/08/4", "tags": ["Mailing List", "Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/93454", "tags": ["Third Party Advisory", "VDB Entry"], "source": "secalert@redhat.com"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg06609.html", "tags": ["Patch", "Third Party Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-772"}]}], "descriptions": [{"lang": "en", "value": "Memory leak in the ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption) via a large number of crafted buffer page select (PG) indexes."}, {"lang": "es", "value": "Fuga de memoria en la funci\u00f3n ehci_process_itd en hw/usb/hcd-ehci.c en QEMU (tambi\u00e9n conocido como Quick Emulator) permite a administradores locales del SO invitado provocar una denegaci\u00f3n de servicio (consumo de memoria) a trav\u00e9s de un gran n\u00famero de \u00edndices de selecci\u00f3n de p\u00e1gina (PG) de b\u00fafer manipuladas."}], "lastModified": "2023-02-12T23:25:27.257", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F83E2010-6463-407A-928D-DB71A705A04C", "versionEndIncluding": "2.7.1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1EA337A3-B9A3-4962-B8BD-8E0C7C5B28EB"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}