CVE-2018-20024
Published: 19 December 2018
LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libvncserver Launchpad, Ubuntu, Debian |
cosmic |
Released
(0.9.11+dfsg-1.1ubuntu0.1)
|
| disco |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| jammy |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| bionic |
Released
(0.9.11+dfsg-1ubuntu1.1)
|
|
| focal |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| groovy |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| hirsute |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| impish |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| kinetic |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| lunar |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
| trusty |
Released
(0.9.9+dfsg-1ubuntu1.4)
|
|
| upstream |
Released
(0.9.11+dfsg-1.2)
|
|
| xenial |
Released
(0.9.10+dfsg-3ubuntu0.16.04.3)
|
|
| mantic |
Not vulnerable
(0.9.11+dfsg-1.2)
|
|
|
Patches: upstream: https://github.com/LibVNC/libvncserver/commit/4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 |
||
|
x11vnc Launchpad, Ubuntu, Debian |
cosmic |
Ignored
(end of life)
|
| jammy |
Not vulnerable
(uses shared libvnc)
|
|
| bionic |
Not vulnerable
(uses shared libvnc)
|
|
| disco |
Not vulnerable
(uses shared libvnc)
|
|
| focal |
Not vulnerable
(uses shared libvnc)
|
|
| groovy |
Not vulnerable
(uses shared libvnc)
|
|
| hirsute |
Not vulnerable
(uses shared libvnc)
|
|
| impish |
Not vulnerable
(uses shared libvnc)
|
|
| kinetic |
Not vulnerable
(uses shared libvnc)
|
|
| lunar |
Not vulnerable
(uses shared libvnc)
|
|
| trusty |
Not vulnerable
(uses shared libvnc)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(uses shared libvnc)
|
|
| mantic |
Not vulnerable
(uses shared libvnc)
|
|
|
italc Launchpad, Ubuntu, Debian |
jammy |
Does not exist
|
| bionic |
Released
(1:3.0.3+dfsg1-3ubuntu0.1)
|
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| trusty |
Does not exist
(trusty was needed)
|
|
| upstream |
Released
(1:3.0.3+dfsg1-1+deb9u1, 1:2.0.2+dfsg1-2+deb8u1)
|
|
| xenial |
Released
(1:2.0.2+dfsg1-4ubuntu0.1)
|
|
| mantic |
Does not exist
|
|
|
ssvnc Launchpad, Ubuntu, Debian |
jammy |
Not vulnerable
(1.0.29-5)
|
| bionic |
Needed
|
|
| focal |
Not vulnerable
(1.0.29-5)
|
|
| groovy |
Not vulnerable
(1.0.29-5)
|
|
| hirsute |
Not vulnerable
(1.0.29-5)
|
|
| impish |
Not vulnerable
(1.0.29-5)
|
|
| kinetic |
Not vulnerable
(1.0.29-5)
|
|
| lunar |
Not vulnerable
(1.0.29-5)
|
|
| trusty |
Does not exist
(trusty was needed)
|
|
| upstream |
Released
(1.0.29-2+deb8u1, 1.0.29-3+deb9u1, 1.0.29-4+deb10u1, 1.0.29-5)
|
|
| xenial |
Released
(1.9.29-2+deb8u1build0.16.04.1)
|
|
| mantic |
Not vulnerable
(1.0.29-5)
|
|
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20024
- https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/
- https://ubuntu.com/security/notices/USN-3877-1
- https://ubuntu.com/security/notices/USN-4547-1
- https://ubuntu.com/security/notices/USN-4547-2
- https://ubuntu.com/security/notices/USN-4587-1
- NVD
- Launchpad
- Debian