CVE-2017-2633

Qemu vulnerability

CVSS

5.4

EPSS

3.0%

EPSS pct

86th

Exploited

No known

An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process.

Affected vendor

Qemu

Affected product

Qemu

CVSS vector

CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Weakness type (CWE)

CWE-120 — Classic Buffer Overflow
CWE-125 — Out-of-bounds Read
CWE-787 — Out-of-bounds Write

Published

2018-07-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable from an adjacent network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to low impact to integrity, low impact to availability.

Its EPSS score of 3.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 86% of all scored CVEs.

Check your external exposure to CVE-2017-2633

Confirm whether Qemu Qemu is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2017-2633.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-2633

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