CVE-2018-7225
CRITICAL9.8EPSS 3.3%libvncserver - security update
Published: 2/19/2018Modified: 4/28/2026
Description
An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.
Affected packages (6)
- Alpine/libvncserverfrom 0, < 0.9.11-r2
- Debian/libvncserverfrom 0, < 0.9.11+dfsg-1.1
- Debian/libvncserverfrom 0, < 0.9.9+dfsg-1+deb7u3
- Debian/libvncserverfrom 0, < 0.9.9+dfsg2-6.1+deb8u3
- Debian/tightvncfrom 0, < 1:1.3.9-9.1
- Debian/vinofrom 0, < 3.22.0-6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |