CVE-2018-7225 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 da...
CriticalCVSS 9.8
EPSS 6.1%
- Published
- Updated
- Exploit status
- No public exploit known
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 products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/libvncserver(Debian:12) | < 0.9.11+dfsg-1.1 | 0.9.11+dfsg-1.1 |
| debian/libvncserver(Debian:13) | < 0.9.11+dfsg-1.1 | 0.9.11+dfsg-1.1 |
| debian/libvncserver(Debian:14) | < 0.9.11+dfsg-1.1 | 0.9.11+dfsg-1.1 |
| debian/tightvnc(Debian:12) | < 1:1.3.9-9.1 | 1:1.3.9-9.1 |
| debian/tightvnc(Debian:13) | < 1:1.3.9-9.1 | 1:1.3.9-9.1 |
| debian/tightvnc(Debian:14) | < 1:1.3.9-9.1 | 1:1.3.9-9.1 |
| debian/vino(Debian:12) | < 3.22.0-6 | 3.22.0-6 |
| libvncserver project libvncserver | <= 0.9.11 | No fix listed |
| debian linux | = 7.0 | No fix listed |
| debian linux | = 8.0 | No fix listed |
| debian linux | = 9.0 | No fix listed |
| Canonical Ubuntu Linux | = 14.04 | No fix listed |
| Canonical Ubuntu Linux | = 16.04 | No fix listed |
| Canonical Ubuntu Linux | = 17.10 | No fix listed |
| redhat enterprise linux desktop | = 7.0 | No fix listed |
| redhat enterprise linux server | = 7.0 | No fix listed |
| redhat enterprise linux server aus | = 7.6 | No fix listed |
| redhat enterprise linux server eus | = 7.5 | No fix listed |
| redhat enterprise linux server eus | = 7.6 | No fix listed |
| redhat enterprise linux server tus | = 7.6 | No fix listed |
| redhat enterprise linux workstation | = 7.0 | No fix listed |
| alpine/libvncserver(Alpine:v3.10) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.11) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.12) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.13) | < 0.9.11-r2 | 0.9.11-r2 |
Show 20 more
| Product | Affected versions | Fixed in |
|---|---|---|
| alpine/libvncserver(Alpine:v3.14) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.15) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.16) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.17) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.18) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.19) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.20) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.21) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.22) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.23) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.24) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.5) | < 0.9.11-r1 | 0.9.11-r1 |
| alpine/libvncserver(Alpine:v3.6) | < 0.9.11-r1 | 0.9.11-r1 |
| alpine/libvncserver(Alpine:v3.7) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.8) | < 0.9.11-r2 | 0.9.11-r2 |
| alpine/libvncserver(Alpine:v3.9) | < 0.9.11-r2 | 0.9.11-r2 |
| ubuntu/tightvnc(Ubuntu:24.04) | All versions | No fix listed |
| ubuntu/tightvnc(Ubuntu:26.04) | All versions | No fix listed |
| ubuntu/tightvnc(Ubuntu:26.10) | All versions | No fix listed |
| ubuntu/tightvnc(Ubuntu:22.04) | All versions | No fix listed |
References
- Ubuntu CVE tracker vendor-advisory
- USN-3618-1 vendor-advisory
- USN-4547-1 vendor-advisory
- USN-4573-1 vendor-advisory
- USN-4587-1 vendor-advisory
- www.cve.org
- Debian Security Tracker CVE-2018-7225 vendor-advisory
- www.openwall.com exploit mailing-list third-party-advisory
- 103107 third-party-advisory vdb-entry
- RHSA-2018:1055 third-party-advisory vendor-advisory
- github.com third-party-advisory
- [debian-lts-announce] 20180330 [SECURITY] [DLA 1332-1] libvncserver security update mailing-list third-party-advisory
- [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update mailing-list
- [debian-lts-announce] 20191129 [SECURITY] [DLA 2014-1] vino security update mailing-list
- [debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update mailing-list
- GLSA-201908-05 vendor-advisory
- USN-3618-1 third-party-advisory vendor-advisory
- USN-4547-1 vendor-advisory
- USN-4573-1 vendor-advisory
- USN-4587-1 vendor-advisory
- DSA-4221 third-party-advisory vendor-advisory
- security.alpinelinux.org vendor-advisory
- bugs.debian.org issue-tracking
- bugs.debian.org issue-tracking