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 v3.0 6.0 MEDIUM
CVSS v2.0 2.1 LOW

6.0^/10

CVSS v3.0 : 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://www.securityfocus.com/bid/93454	Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2016/10/08/4	Mailing List Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg06609.html	Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/07/3	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html	Mailing List Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b16c129daf0fed91febbb88de23dae8271c8898a

Advertisement

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

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

Information

Published : 2016-12-09 16:59

Updated : 2023-02-12 15:25

NVD link : CVE-2016-7995

Mitre link : CVE-2016-7995

JSON object : View

CWE

CWE-772

Missing Release of Resource after Effective Lifetime

Advertisement

Products Affected

opensuse

leap

qemu

qemu

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "http://www.securityfocus.com/bid/93454", "name": "93454", "tags": ["Third Party Advisory", "VDB Entry"], "refsource": "BID"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/08/4", "name": "[oss-security] 20161008 Re: CVE request Qemu: usb: hcd-ehci: memory leak in ehci_process_itd", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg06609.html", "name": "[qemu-devel] 20160926 Re: [PATCH] usb: ehci: fix memory leak in ehci_process_itd", "tags": ["Patch", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://www.openwall.com/lists/oss-security/2016/10/07/3", "name": "[oss-security] 20161007 CVE request Qemu: usb: hcd-ehci: memory leak in ehci_process_itd", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "MLIST"}, {"url": "http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html", "name": "openSUSE-SU-2016:3237", "tags": ["Mailing List", "Third Party Advisory"], "refsource": "SUSE"}, {"url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b16c129daf0fed91febbb88de23dae8271c8898a", "name": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b16c129daf0fed91febbb88de23dae8271c8898a", "tags": [], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-772"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2016-7995", "ASSIGNER": "secalert@redhat.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"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"}, "severity": "LOW", "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"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}}, "publishedDate": "2016-12-10T00:59Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndIncluding": "2.7.1"}]}, {"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-02-12T23:25Z"}