CVE-2015-1779
qemu: vnc: insufficient resource limiting in VNC websockets decoder
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · March 23, 2015
Updated · June 28, 2026
Description
It was found that the QEMU's websocket frame decoder processed incoming frames without limiting resources used to process the header and the payload. An attacker able to access a guest's VNC console could use this flaw to trigger a denial of service on the host by exhausting all available memory and CPU.
Statement
This issue did not affect the kvm and qemu-kvm packages as shipped with Red Hat Enterprise Linux 5 and 6.
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 2.0 · 5.7AV:A/AC:M/Au:N/C:N/I:N/A:C
CWE-770 · Allocation of Resources Without Limits or Throttling