CVE-2023-3255
MEDIUM
MEDIUM
Priority: 0.12
BB Relevance:
63/100
Published: 2023-09-13
Modified: 2026-11-07
First seen: 2026-11-01
Status: active
Attack Surface
Network
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Network
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
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.
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| fedoraproject | fedora | 38 |
| qemu | qemu | < 8.0.3 |
| redhat | enterprise_linux | 8.0 |
| redhat | enterprise_linux | 9.0 |
References & Advisories (5)
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT