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.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.1 | 6.5 | Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Product | Vendor | Version |
|---|---|---|
| Red Hat Enterprise Linux 6 | Red Hat | < 19.3.0003.0 |
| Red Hat Enterprise Linux 9 | Red Hat | < 6.1.7601.27670 |
| Red Hat Enterprise Linux 7 | Red Hat | n/a |
| Red Hat Enterprise Linux 7 | Red Hat | < 18.7.0002.0 |
| Red Hat Enterprise Linux 8 Advanced Virtualization | Red Hat | < publication |
| Red Hat Enterprise Linux 8 | Red Hat | n/a |
| Red Hat Enterprise Linux 8 | Red Hat | < 15.0.2110.4 |