CVE-2018-20024
Publication date 19 December 2018
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.
Status
Package | Ubuntu Release | Status |
---|---|---|
italc | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic |
Fixed 1:3.0.3+dfsg1-3ubuntu0.1
|
|
16.04 LTS xenial |
Fixed 1:2.0.2+dfsg1-4ubuntu0.1
|
|
14.04 LTS trusty | Not in release | |
libvncserver | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Not affected
|
|
18.04 LTS bionic |
Fixed 0.9.11+dfsg-1ubuntu1.1
|
|
16.04 LTS xenial |
Fixed 0.9.10+dfsg-3ubuntu0.16.04.3
|
|
14.04 LTS trusty |
Fixed 0.9.9+dfsg-1ubuntu1.4
|
|
ssvnc | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Not affected
|
|
18.04 LTS bionic |
Vulnerable
|
|
16.04 LTS xenial |
Fixed 1.9.29-2+deb8u1build0.16.04.1
|
|
14.04 LTS trusty | Not in release | |
x11vnc | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Not affected
|
|
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty |
Not affected
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 · High |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-3877-1
- LibVNCServer vulnerabilities
- 31 January 2019
- USN-4547-1
- iTALC vulnerabilities
- 28 September 2020
- USN-4547-2
- SSVNC vulnerabilities
- 28 September 2020
- USN-4587-1
- iTALC vulnerabilities
- 20 October 2020