critical
CVE-2018-7225
libvncserver: Improper input sanitization in rfbProcessClientNormalMessage in rfbserver.c
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat5.4CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium), Amazon (medium), Oracle (medium), Ubuntu (medium).
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 and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.10 | libvncserver | 0.9.11-r2 |
| alpine 3.11 | libvncserver | 0.9.11-r2 |
| alpine 3.12 | libvncserver | 0.9.11-r2 |
| alpine 3.13 | libvncserver | 0.9.11-r2 |
| alpine 3.14 | libvncserver | 0.9.11-r2 |
| alpine 3.15 | libvncserver | 0.9.11-r2 |
| alpine 3.16 | libvncserver | 0.9.11-r2 |
| alpine 3.17 | libvncserver | 0.9.11-r2 |
| alpine 3.18 | libvncserver | 0.9.11-r2 |
| alpine 3.19 | libvncserver | 0.9.11-r2 |
| alpine 3.20 | libvncserver | 0.9.11-r2 |
| alpine 3.21 | libvncserver | 0.9.11-r2 |
Show all 95 entries from 55 sources
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.10 | libvncserver | 0.9.11-r2 |
| alpine 3.11 | libvncserver | 0.9.11-r2 |
| alpine 3.12 | libvncserver | 0.9.11-r2 |
| alpine 3.13 | libvncserver | 0.9.11-r2 |
| alpine 3.14 | libvncserver | 0.9.11-r2 |
| alpine 3.15 | libvncserver | 0.9.11-r2 |
| alpine 3.16 | libvncserver | 0.9.11-r2 |
| alpine 3.17 | libvncserver | 0.9.11-r2 |
| alpine 3.18 | libvncserver | 0.9.11-r2 |
| alpine 3.19 | libvncserver | 0.9.11-r2 |
| alpine 3.20 | libvncserver | 0.9.11-r2 |
| alpine 3.21 | libvncserver | 0.9.11-r2 |
| alpine 3.22 | libvncserver | 0.9.11-r2 |
| alpine 3.23 | libvncserver | 0.9.11-r2 |
| alpine 3.24 | libvncserver | 0.9.11-r2 |
| alpine 3.5 | libvncserver | 0.9.11-r1 |
| alpine 3.6 | libvncserver | 0.9.11-r1 |
| alpine 3.7 | libvncserver | 0.9.11-r2 |
| alpine 3.8 | libvncserver | 0.9.11-r2 |
| alpine 3.9 | libvncserver | 0.9.11-r2 |
| alpine edge | libvncserver | 0.9.11-r2 |
| amazon linux 2 | libvncserver | 0.9.9-12.amzn2 |
| amazon linux 2 | libvncserver-debuginfo | 0.9.9-12.amzn2 |
| amazon linux 2 | libvncserver-devel | 0.9.9-12.amzn2 |
| debian 10 | tightvnc | 1:1.3.9-9deb10u1 |
| debian 10 | vino | no fix listed |
| debian 11 | libvncserver | 0.9.11+dfsg-1.1 |
| debian 11 | tightvnc | 1:1.3.9-9.1 |
| debian 11 | vino | 3.22.0-6 |
| debian 12 | libvncserver | 0.9.11+dfsg-1.1 |
| debian 12 | tightvnc | 1:1.3.9-9.1 |
| debian 12 | vino | 3.22.0-6 |
| debian 13 | libvncserver | 0.9.11+dfsg-1.1 |
| debian 13 | tightvnc | 1:1.3.9-9.1 |
| debian 14 | libvncserver | 0.9.11+dfsg-1.1 |
| debian 14 | tightvnc | 1:1.3.9-9.1 |
| debian 7 | libvncserver | 0.9.9+dfsg-1+deb7u3 |
| debian 8 | italc | 1:2.0.2+dfsg1-2+deb8u1 |
| debian 8 | libvncserver | 0.9.9+dfsg2-6.1+deb8u3 |
| debian 8 | tightvnc | 1.3.9-6.5+deb8u1 |
| debian 8 | vino | 3.14.0-2+deb8u1 |
| debian 9 | italc | 1:3.0.3+dfsg1-1+deb9u1 |
| debian 9 | libvncserver | 0.9.11+dfsg-1+deb9u1 |
| debian 9 | tightvnc | 1:1.3.9-9+deb9u1 |
| debian 9 | vino | no fix listed |
| echo | libvncserver | 0.9.11+dfsg-1.1 |
| echo | tightvnc | 1:1.3.9-9.1 |
| echo | vino | 3.22.0-6 |
| Oracle Linux 7 | libvncserver | 0.9.9-12.el7_5 |
| Oracle Linux 7 | libvncserver-devel | 0.9.9-12.el7_5 |
| Red Hat | libvncserver | no fix listed |
| Red Hat | libvncserver-devel | no fix listed |
| ubuntu 14.04 | libvncserver | 0.9.9+dfsg-1ubuntu1.3 |
| ubuntu 14.04-ESM | tightvnc | 1.3.9-6.5+deb8u1build0.14.04.1~esm1 |
| ubuntu 16.04 | italc | 1:2.0.2+dfsg1-4ubuntu0.1 |
| ubuntu 16.04 | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.2 |
| ubuntu 16.04 | vino | 3.8.1-0ubuntu9.3 |
| ubuntu 16.04-ESM | italc | 1:2.0.2+dfsg1-4ubuntu0.1 |
| ubuntu 16.04-ESM | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.2 |
| ubuntu 16.04-ESM | vino | 3.8.1-0ubuntu9.3 |
| ubuntu 17.10 | libvncserver | 0.9.11+dfsg-1ubuntu0.1 |
| ubuntu 18.04 | italc | 1:3.0.3+dfsg1-3ubuntu0.1 |
| ubuntu 18.04 | libvncserver | 0.9.11+dfsg-1ubuntu0.1 |
| ubuntu 18.04 | vino | 3.22.0-3ubuntu1.1 |
| ubuntu 18.04-ESM | italc | 1:3.0.3+dfsg1-3ubuntu0.1 |
| ubuntu 18.04-ESM | libvncserver | 0.9.11+dfsg-1ubuntu0.1 |
| ubuntu 18.04-ESM | vino | 3.22.0-3ubuntu1.1 |
| ubuntu 20.04 | libvncserver | 0.9.11+dfsg-1ubuntu0.1 |
| ubuntu 20.04 | vino | 3.22.0-5ubuntu2.1 |
| ubuntu 20.04-ESM | libvncserver | 0.9.11+dfsg-1ubuntu0.1 |
| ubuntu 20.04-ESM | vino | 3.22.0-5ubuntu2.1 |
| ubuntu 20.10 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 20.10 | vino | 3.22.0-6ubuntu1 |
| ubuntu 21.04 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 21.04 | vino | 3.22.0-6ubuntu1 |
| ubuntu 21.10 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 21.10 | vino | 3.22.0-6ubuntu1 |
| ubuntu 22.04 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 22.04 | vino | 3.22.0-6ubuntu1 |
| ubuntu 22.10 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 22.10 | vino | 3.22.0-6ubuntu1 |
| ubuntu 23.04 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 23.04 | vino | 3.22.0-6ubuntu1 |
| ubuntu 23.10 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 23.10 | vino | 3.22.0-6ubuntu1 |
| ubuntu 24.04 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 24.04 | vino | 3.22.0-6ubuntu1 |
| ubuntu 24.10 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 24.10 | vino | 3.22.0-6ubuntu1 |
| ubuntu 25.04 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 25.04 | vino | 3.22.0-6ubuntu1 |
| ubuntu 25.10 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 25.10 | vino | 3.22.0-6ubuntu1 |
| ubuntu 26.04 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
| ubuntu 26.10 | libvncserver | 0.9.11+dfsg-1ubuntu1 |
References
- http://www.openwall.com/lists/oss-security/2018/02/18/1
- http://www.securityfocus.com/bid/103107
- https://access.redhat.com/errata/RHSA-2018:1055
- https://access.redhat.com/security/cve/CVE-2018-7225
- https://github.com/LibVNC/libvncserver/issues/218
- https://linux.oracle.com/cve/CVE-2018-7225.html
- https://linux.oracle.com/errata/ELSA-2018-1055.html
- https://lists.debian.org/debian-lts-announce/2018/03/msg00035.html
All 23 references
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
- https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html
- https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
- https://nvd.nist.gov/vuln/detail/CVE-2018-7225
- https://security.gentoo.org/glsa/201908-05
- https://ubuntu.com/security/notices/USN-3618-1
- https://ubuntu.com/security/notices/USN-4547-1
- https://ubuntu.com/security/notices/USN-4573-1
- https://ubuntu.com/security/notices/USN-4587-1
- https://usn.ubuntu.com/3618-1/
- https://usn.ubuntu.com/4547-1/
- https://usn.ubuntu.com/4573-1/
- https://usn.ubuntu.com/4587-1/
- https://www.cve.org/CVERecord?id=CVE-2018-7225
- https://www.debian.org/security/2018/dsa-4221