CVE-2020-14405
Fixed in a distro release EPSS 2%
An issue was discovered in LibVNCServer before 0.9.13. libvncclient/rfbproto.c does not limit TextChat size.
Products: libvnc_project libvncserver, canonical ubuntu_linux, debian_linux, siemens simatic_itc1500_firmware, siemens simatic_itc1500_pro_firmware, siemens simatic_itc1900_firmware, siemens simatic_itc1900_pro_firmware, siemens simatic_itc2200_firmware, siemens simatic_itc2200_pro_firmware
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 8 | libvncserver | 0.9.11-17.el8 |
| AlmaLinux 8 | libvncserver-devel | 0.9.11-17.el8 |
| Debian 12 | libvncserver | 0.9.13+dfsg-1 |
| Debian 13 | libvncserver | 0.9.13+dfsg-1 |
| Debian 14 | libvncserver | 0.9.13+dfsg-1 |
| Debian 8 | libvncserver | 0.9.9+dfsg2-6.1+deb8u8 |
| Debian 9 | libvncserver | 0.9.11+dfsg-1.3~deb9u5 |
| Red Hat Enterprise Linux 8 | libvncserver | 0:0.9.11-17.el8 |
| Red Hat Enterprise Linux 8 | libvncserver-debuginfo | 0:0.9.11-17.el8 |
| Red Hat Enterprise Linux 8 | libvncserver-debugsource | 0:0.9.11-17.el8 |
| Red Hat Enterprise Linux 8 | libvncserver-devel | 0:0.9.11-17.el8 |
| Rocky Linux 8 | libvncserver | 0:0.9.11-17.el8 |
| Ubuntu 14.04 LTS | x11vnc | no fix |
| Ubuntu 16.04 LTS | libvncserver | 0.9.10+dfsg-3ubuntu0.16.04.5 |
| Ubuntu 18.04 LTS | libvncserver | 0.9.11+dfsg-1ubuntu1.3 |
| Ubuntu 20.04 LTS | libvncserver | 0.9.12+dfsg-9ubuntu0.2 |
| Ubuntu 20.04 LTS | veyon | no fix |
| Ubuntu 22.04 LTS | veyon | no fix |
| Ubuntu 24.04 LTS | veyon | no fix |
| Ubuntu 25.10 | veyon | no fix |
| Ubuntu 26.04 LTS | veyon | no fix |
| Ubuntu 26.10 | veyon | no fix |