medium6.5
CVE-2023-3255
A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 | Version patch: 8100020240314161907.e155f54d |
| Red Hat | Red Hat Enterprise Linux 9 | Version patch: 17:8.2.0-11.el9_4 |
| Qemu | Qemu | through 8.0.3 |
| Redhat | Enterprise Linux | Versions 8.0, 9.0 |
| Fedoraproject | Fedora | Version 38 |