Vulnerability Details : CVE-2016-4952
QEMU (aka Quick Emulator), when built with VMWARE PVSCSI paravirtual SCSI bus emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds array access) via vectors related to the (1) PVSCSI_CMD_SETUP_RINGS or (2) PVSCSI_CMD_SETUP_MSG_RING SCSI command.
Vulnerability category: Denial of service
Products affected by CVE-2016-4952
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-4952
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 27 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-4952
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
1.9
|
LOW | AV:L/AC:M/Au:N/C:N/I:N/A:P |
3.4
|
2.9
|
NIST | |
|
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 |
CWE ids for CVE-2016-4952
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-4952
-
http://www.ubuntu.com/usn/USN-3047-1
USN-3047-1: QEMU vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1334384
1334384 – (CVE-2016-4952) CVE-2016-4952 Qemu: scsi: pvscsi: out-of-bounds access issue in pvsci_ring_init_msg/data routinesIssue Tracking;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/05/23/1
oss-security - CVE request: Qemu: scsi: pvscsi: out-of-bounds access issue in pvsci_ring_init_msg/data routinesMailing List;Third Party Advisory
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http://www.ubuntu.com/usn/USN-3047-2
USN-3047-2: QEMU regression | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateMailing List;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/05/23/4
oss-security - Re: CVE request: Qemu: scsi: pvscsi: out-of-bounds access issue in pvsci_ring_init_msg/data routinesMailing List;Third Party Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03774.html
[Qemu-devel] [PATCH] scsi: pvscsi: check command descriptor ring bufferMailing List;Patch;Third Party Advisory
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