Vulnerability Details : CVE-2017-5856
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.
Vulnerability category: Denial of service
Products affected by CVE-2017-5856
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-5856
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-2017-5856
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:N/A:C |
3.9
|
6.9
|
NIST | |
6.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
2.0
|
4.0
|
NIST |
CWE ids for CVE-2017-5856
-
The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-5856
-
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
[SECURITY] [DLA 1497-1] qemu security updateThird Party Advisory
-
https://security.gentoo.org/glsa/201702-28
QEMU: Multiple vulnerabilities (GLSA 201702-28) — Gentoo securityThird Party Advisory
-
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=765a707000e838c30b18d712fe6cb3dd8e0435f3
QEMU · GitLab
-
http://www.openwall.com/lists/oss-security/2017/02/02/14
oss-security - Re: CVE request Qemu: scsi: megasas: host memory leakage in megasas_handle_dcmdMailing List;Patch;Third Party Advisory
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http://www.securityfocus.com/bid/95999
QEMU 'hw/scsi/megasas.c' Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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http://www.openwall.com/lists/oss-security/2017/02/01/19
oss-security - CVE request Qemu: scsi: megasas: host memory leakage in megasas_handle_dcmdMailing List;Patch;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1418342
1418342 – (CVE-2017-5856) CVE-2017-5856 Qemu: scsi: megasas: host memory leakage in megasas_handle_dcmdIssue Tracking;Patch;Third Party Advisory
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