CVE-2017-18922
Published: 30 June 2020
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libvncserver Launchpad, Ubuntu, Debian |
bionic |
Released
(0.9.11+dfsg-1ubuntu1.2)
|
| eoan |
Released
(0.9.11+dfsg-1.3ubuntu0.1)
|
|
| impish |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| focal |
Released
(0.9.12+dfsg-9ubuntu0.1)
|
|
| groovy |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| jammy |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| kinetic |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| lunar |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| hirsute |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.9.10+dfsg-3ubuntu0.16.04.4)
|
|
|
Patches: upstream: https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433 |
||
|
veyon Launchpad, Ubuntu, Debian |
groovy |
Ignored
(end of life)
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| jammy |
Needs triage
|
|
| impish |
Ignored
(end of life)
|
|
| lunar |
Needs triage
|
|
| bionic |
Does not exist
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Needs triage
|
|
| hirsute |
Ignored
(end of life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
x11vnc Launchpad, Ubuntu, Debian |
groovy |
Ignored
(end of life)
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| jammy |
Needs triage
|
|
| xenial |
Needs triage
|
|
| impish |
Ignored
(end of life)
|
|
| lunar |
Needs triage
|
|
| bionic |
Needs triage
|
|
| eoan |
Ignored
(end of life)
|
|
| focal |
Needs triage
|
|
| hirsute |
Ignored
(end of life)
|
|
| trusty |
Needs triage
|
|
| upstream |
Needs triage
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |