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CVE-2017-5856

Date: March 16, 2017

Memory leak in the megasas_handle_dcmd function in hw/scsi/megasas.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) via MegaRAID Firmware Interface (MFI) commands with the sglist size set to a value over 2 Gb.

Language: C

Severity Score

Related Resources (12)

http://www.openwall.com/lists/oss-security/2017/02/02/14
https://nvd.nist.gov/vuln/detail/CVE-2017-5856
https://security.gentoo.org/glsa/201702-28
https://security-tracker.debian.org/tracker/CVE-2017-5856
http://www.securityfocus.com/bid/95999
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-5856
https://security.alpinelinux.org/vuln/CVE-2017-5856
http://www.openwall.com/lists/oss-security/2017/02/01/19
https://bugzilla.redhat.com/show_bug.cgi?id=1418342
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=765a707000e838c30b18d712fe6cb3dd8e0435f3
https://www.mend.io/vulnerability-database/CVE-2017-5856

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

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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