CVE Database›Document archive›CVE-2017-15124

CVE-2017-15124

Qemu: memory exhaustion through framebuffer update request message in VNC server

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Severity

Low

Red Hat Product Security

3.5

CVSS 3.0

Review impact separately from score.

Published · December 18, 2017

Updated · June 28, 2026

Description

VNC server implementation in Quick Emulator (QEMU) was found to be vulnerable to an unbounded memory allocation issue, as it did not throttle the framebuffer updates sent to its client. If the client did not consume these updates, VNC server allocates growing memory to hold onto this data. A malicious remote VNC client could use this flaw to cause DoS to the server host.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 3.5
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L

CVSS 2.0 · 2.1
AV:N/AC:H/Au:S/C:N/I:N/A:P

CWE-770 · Allocation of Resources Without Limits or Throttling