CVE-2017-15124
Qemu: memory exhaustion through framebuffer update request message in VNC server
Severity
LowRed Hat Product Security
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 · 3.5CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
CVSS 2.0 · 2.1AV:N/AC:H/Au:S/C:N/I:N/A:P
CWE-770 · Allocation of Resources Without Limits or Throttling