CVE-2019-20840
Published: 17 June 2020
An issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libvncserver Launchpad, Ubuntu, Debian |
bionic |
Released
(0.9.11+dfsg-1ubuntu1.3)
|
| eoan |
Ignored
(reached end-of-life)
|
|
| focal |
Not vulnerable
|
|
| groovy |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| hirsute |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| impish |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| jammy |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| kinetic |
Not vulnerable
(0.9.13+dfsg-1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.9.10+dfsg-3ubuntu0.16.04.5)
|
|
|
Patches: upstream: https://github.com/LibVNC/libvncserver/commit/0cf1400c61850065de590d403f6d49e32882fd76 |
||
|
veyon Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Ignored
(reached end-of-life)
|
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Ignored
(reached end-of-life)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Needs triage
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
x11vnc Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| eoan |
Ignored
(reached end-of-life)
|
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(reached end-of-life)
|
|
| hirsute |
Ignored
(reached end-of-life)
|
|
| impish |
Ignored
(reached end-of-life)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Needs triage
|
|
| precise |
Does not exist
|
|
| trusty |
Needs triage
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |