CVE-2018-20019
Published: 19 December 2018
LibVNC before commit a83439b9fbe0f03c48eb94ed05729cb016f8b72f contains multiple heap out-of-bound write vulnerabilities in VNC client code that can result remote code execution
Notes
| Author | Note |
|---|---|
| mdeslaur | original upstream patch for this issue was incomplete. See CVE-2018-20748 for more fixes. |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
italc Launchpad, Ubuntu, Debian |
bionic |
Released
(1:3.0.3+dfsg1-3ubuntu0.1)
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
(trusty was needed)
|
|
| xenial |
Released
(1:2.0.2+dfsg1-4ubuntu0.1)
|
|
| upstream |
Released
(1:3.0.3+dfsg1-1+deb9u1, 1:2.0.2+dfsg1-2+deb8u1)
|
|
|
libvncserver Launchpad, Ubuntu, Debian |
bionic |
Released
(0.9.11+dfsg-1ubuntu1.1)
|
| cosmic |
Released
(0.9.11+dfsg-1.1ubuntu0.1)
|
|
| disco |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| trusty |
Released
(0.9.9+dfsg-1ubuntu1.4)
|
|
| upstream |
Released
(0.9.11+dfsg-1.2)
|
|
| focal |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| xenial |
Released
(0.9.10+dfsg-3ubuntu0.16.04.3)
|
|
|
Patches: upstream: https://github.com/LibVNC/libvncserver/commit/a83439b9fbe0f03c48eb94ed05729cb016f8b72f |
||
|
x11vnc Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(uses shared libvnc)
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Not vulnerable
(uses shared libvnc)
|
|
| focal |
Not vulnerable
(uses shared libvnc)
|
|
| trusty |
Not vulnerable
(uses shared libvnc)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(uses shared libvnc)
|
|
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 |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20019
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-029-libvnc-multiple-heap-out-of-bound-vulnerabilities/
- https://ubuntu.com/security/notices/USN-3877-1
- https://ubuntu.com/security/notices/USN-4547-1
- NVD
- Launchpad
- Debian