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CVE-2017-5857

Good to know:

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Date: March 16, 2017

Memory leak in the virgl_cmd_resource_unref function in hw/display/virtio-gpu-3d.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (host memory consumption) via a large number of VIRTIO_GPU_CMD_RESOURCE_UNREF commands sent without detaching the backing storage beforehand.

Language: C

Severity Score

Related Resources (10)

http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=5e8e3c4c75c199aa1017db816fca02be2a9f8798
http://www.securityfocus.com/bid/95993
https://nvd.nist.gov/vuln/detail/CVE-2017-5857
https://security.gentoo.org/glsa/201702-28
https://security-tracker.debian.org/tracker/CVE-2017-5857
http://www.openwall.com/lists/oss-security/2017/02/01/21
https://bugzilla.redhat.com/show_bug.cgi?id=1418382
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-5857
http://www.openwall.com/lists/oss-security/2017/02/02/16
https://www.mend.io/vulnerability-database/CVE-2017-5857

Severity Score

Weakness Type (CWE)

Resource Management Errors

CWE-399

Missing Release of Memory after Effective Lifetime

CWE-401

Missing Release of Resource after Effective Lifetime

CWE-772

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): COMPLETE
Additional information:

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