Vulnerability CVE-2017-17381
Published: 2017-12-06   Modified: 2017-12-07

Description:
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.

Type:

CWE-369

 (Divide By Zero)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
2.1/10
2.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
QEMU -> QEMU 

 References:
http://www.openwall.com/lists/oss-security/2017/12/05/2
http://www.securityfocus.com/bid/102059
https://lists.gnu.org/archive/html/qemu-devel/2017-12/msg00166.html
https://usn.ubuntu.com/3575-1/
https://www.debian.org/security/2018/dsa-4213
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