Debian Security Bug TrackerDEBIANCVE:CVE-2017-18922CVE-2017-18922
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 |
|---|---|---|---|---|---|
| Debian | 12 | all | libvncserver | < 0.9.12+dfsg-3 | libvncserver_0.9.12+dfsg-3_all.deb |
| Debian | 11 | all | libvncserver | < 0.9.12+dfsg-3 | libvncserver_0.9.12+dfsg-3_all.deb |
| Debian | 10 | all | libvncserver | <= 0.9.11+dfsg-1.3+deb10u4 | libvncserver_0.9.11+dfsg-1.3+deb10u4_all.deb |
| Debian | 999 | all | libvncserver | < 0.9.12+dfsg-3 | libvncserver_0.9.12+dfsg-3_all.deb |
| Debian | 13 | all | libvncserver | < 0.9.12+dfsg-3 | libvncserver_0.9.12+dfsg-3_all.deb |
Related
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%