Vulnerability Details : CVE-2017-17381
The Virtio Vring implementation in QEMU allows local OS guest users to cause a denial of service (divide-by-zero error and QEMU process crash) by unsetting vring alignment while updating Virtio rings.
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-17381
Probability of exploitation activity in the next 30 days: 0.06%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 25 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-17381
| 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 |
|
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-2017-17381
-
The product divides a value by zero.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-17381
-
http://www.openwall.com/lists/oss-security/2017/12/05/2
oss-security - CVE-2017-17381 Qemu: virtio: divide by zero exception while updating ringsMailing List;Third Party Advisory
-
https://usn.ubuntu.com/3575-1/
USN-3575-1: QEMU vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://www.debian.org/security/2018/dsa-4213
Debian -- Security Information -- DSA-4213-1 qemuThird Party Advisory
-
http://www.securityfocus.com/bid/102059
QEMU CVE-2017-17381 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg00166.html
[Qemu-devel] [PULL 6/7] virtio: check VirtQueue Vring object is setIssue Tracking;Third Party Advisory
Products affected by CVE-2017-17381
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.11.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.11.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.11.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.11.0:rc3:*:*:*:*:*:*