9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
73.3%
It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not
properly decode certain WebSocket frames. A malicious attacker could
exploit this by sending specially crafted WebSocket frames to a server,
causing a heap-based buffer overflow.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | libvncserver | < 0.9.11+dfsg-1ubuntu1.2 | UNKNOWN |
ubuntu | 19.10 | noarch | libvncserver | < 0.9.11+dfsg-1.3ubuntu0.1 | UNKNOWN |
ubuntu | 20.04 | noarch | libvncserver | < 0.9.12+dfsg-9ubuntu0.1 | UNKNOWN |
ubuntu | 16.04 | noarch | libvncserver | < 0.9.10+dfsg-3ubuntu0.16.04.4 | UNKNOWN |
ubuntu | 20.04 | noarch | veyon | < any | UNKNOWN |
ubuntu | 22.04 | noarch | veyon | < any | UNKNOWN |
ubuntu | 23.10 | noarch | veyon | < any | UNKNOWN |
ubuntu | 18.04 | noarch | x11vnc | < any | UNKNOWN |
ubuntu | 20.04 | noarch | x11vnc | < any | UNKNOWN |
ubuntu | 22.04 | noarch | x11vnc | < any | UNKNOWN |
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.004 Low
EPSS
Percentile
73.3%