Description
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.
References (5)
Scores
CVSS v3
6.5
EPSS
0.0012
EPSS Percentile
30.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-835
Status
published
Products (4)
fedoraproject/fedora
38
qemu/qemu
< 8.0.3
redhat/enterprise_linux
8.0
redhat/enterprise_linux
9.0
Published
Sep 13, 2023
Tracked Since
Feb 18, 2026