CVE-2016-7995 : Memory leak in the ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU (aka Q

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.

Published 2016-12-10 00:59:23

Updated 2023-02-12 23:25:27

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Products affected by CVE-2016-7995

Qemu » Qemu
Versions up to, including, (<=) 2.7.1
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Matching versions
Opensuse » Leap » Version: 42.2
cpe:2.3:o:opensuse:leap:42.2:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2016-7995

EPSS FAQ

0.06%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 25 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-7995

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:N/I:N/A:P	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
6.0	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H	1.5	4.0	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Changed Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2016-7995

CWE-772 Missing Release of Resource after Effective Lifetime

The product does not release a resource after its effective lifetime has ended, i.e., after the resource is no longer needed.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-7995

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=b16c129daf0fed91febbb88de23dae8271c8898a

QEMU · GitLab
http://www.openwall.com/lists/oss-security/2016/10/07/3

oss-security - CVE request Qemu: usb: hcd-ehci: memory leak in ehci_process_itd
Mailing List;Third Party Advisory
http://www.securityfocus.com/bid/93454

Qemu 'hcd-ehci.c' Memory Leak Denial of Service Vulnerability
Third Party Advisory;VDB Entry
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg06609.html

Re: [Qemu-devel] [PATCH] usb: ehci: fix memory leak in ehci_process_itd
Patch;Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/08/4

oss-security - Re: CVE request Qemu: usb: hcd-ehci: memory leak in ehci_process_itd
Mailing List;Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html

openSUSE-SU-2016:3237-1: moderate: Security update for qemu
Mailing List;Third Party Advisory

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Vulnerability Details : CVE-2016-7995

Products affected by CVE-2016-7995

Exploit prediction scoring system (EPSS) score for CVE-2016-7995

CVSS scores for CVE-2016-7995

CWE ids for CVE-2016-7995

References for CVE-2016-7995