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.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade libvncserver | Aug 10, 2018 | Feb 19, 2018 |
| Amazon Linux Ami 2 | — | Upgrade libvncserverUpgrade libvncserver-develUpgrade libvncserver-debuginfo | Apr 27, 2020 | Feb 19, 2018 |
| Centos_linux | — | Upgrade libvncserver-debuginfoUpgrade libvncserver-develUpgrade libvncserver | Jun 1, 2018 | Feb 19, 2018 |
| Debian | — | Upgrade vinoUpgrade tightvncUpgrade libvncserver | Jun 9, 2018 | Feb 19, 2018 |
| Gentoo Linux | — | Upgrade net-libs/libvncserver. | Aug 13, 2019 | Feb 19, 2018 |
| Huawei Euleros 2_0_sp1 | — | Upgrade libvncserver | May 29, 2018 | Feb 19, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade libvncserver | Jul 3, 2018 | Feb 19, 2018 |
| Oracle_linux | — | Upgrade libvncserver-develUpgrade libvncserver | Apr 19, 2018 | Feb 18, 2018 |
| Redhat_linux | — | Upgrade libvncserver-develNo solution existsUpgrade libvncserverUpgrade libvncserver-debuginfo | Apr 11, 2018 | Feb 19, 2018 |
| Suse | — | Upgrade libvncclient0Upgrade libvncserver0Upgrade LibVNCServerUpgrade LibVNCServer-devel | Mar 28, 2018 | Feb 19, 2018 |
| Ubuntu | — | Upgrade italc-masterUpgrade libvncclient1Upgrade libitalccoreUpgrade libvncserver0Upgrade libvncserver1Upgrade italc-clientUpgrade vino | Apr 25, 2018 | Feb 19, 2018 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub