CVE-2017-16845

Name: CVE-2017-16845
Creator: NVD / NIST
Published: 2017-11-17T20:29:00.37+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 3.02%

Last modified Jun 17, 2026

CVE-2017-16845 is a critical-severity vulnerability rated 10/10 on the CVSS scale. hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.. EPSS estimates a 3.02% chance of exploitation in the next 30 days.

Description

hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.

Metrics

CVSS 3.1

10/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H

EPSS Probability

3.02%

85.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 2.11.2
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	16.04
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04

References

http://www.securityfocus.com/bid/101923Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02982.htmlMailing List, Patch, Third Party Advisory
https://usn.ubuntu.com/3575-1/Third Party Advisory
https://usn.ubuntu.com/3649-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4213Third Party Advisory
http://www.securityfocus.com/bid/101923Third Party Advisory, VDB Entry
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlMailing List, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02982.htmlMailing List, Patch, Third Party Advisory
https://usn.ubuntu.com/3575-1/Third Party Advisory
https://usn.ubuntu.com/3649-1/Third Party Advisory
https://www.debian.org/security/2018/dsa-4213Third Party Advisory

Timeline

Published: Nov 17, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-16845?

hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.

How severe is CVE-2017-16845?

CVE-2017-16845 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 3.02% probability of exploitation in the next 30 days.

How do I fix CVE-2017-16845?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-16845?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST