CVE-2018-20024

HIGHScheduled

Published:Dec 19, 2018(7 years ago)

Modified:Nov 21, 2024

Remote ExploitNo Auth RequiredNo InteractionLow Complexity

Vulnerability Description

LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.

Attack Characteristics

Network AccessLow ComplexityNo Auth NeededNo User Interaction

🤖

AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

Vendor	Product	Versions	Fixed In
libvnc_project	libvncserver	0.9.12	-
canonical	ubuntu_linux	-	-
canonical	ubuntu_linux

Timeline

Published
CVE disclosed publicly
Dec 19, 20187 years ago
Last Modified
Most recent update
Nov 21, 20241 year ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19...Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlMailing List
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html

CVSS Score

v3.1

7.5/ 10.0

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

At a Glance

Affected Products

References

libvnc_project / libvncserver

https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html

https://security.gentoo.org/glsa/201908-05

https://security.gentoo.org/glsa/202006-06

https://usn.ubuntu.com/3877-1/Third Party Advisory

https://usn.ubuntu.com/4547-1/

https://usn.ubuntu.com/4547-2/

https://usn.ubuntu.com/4587-1/

https://www.debian.org/security/2019/dsa-4383Third Party Advisory

https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19...Third Party Advisory

https://lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlMailing List

https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html

https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html

https://security.gentoo.org/glsa/201908-05

https://security.gentoo.org/glsa/202006-06

https://usn.ubuntu.com/3877-1/Third Party Advisory

https://usn.ubuntu.com/4547-1/

https://usn.ubuntu.com/4547-2/

https://usn.ubuntu.com/4587-1/

https://www.debian.org/security/2019/dsa-4383Third Party Advisory

CVSS v3 Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Impact

ScopeUnchanged

ConfidentialityNone

IntegrityNone

AvailabilityHigh

Impact Analysis

ConfidentialityNone

NoneLowHigh

IntegrityNone

NoneLowHigh

AvailabilityHigh

NoneLowHigh

CVE-2018-20024

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description