CVE-2018-20024 — NULL Pointer Dereference in Project Libvncserver

CWE-476 — NULL Pointer Dereference14 documents8 sources
Severity
7.5HIGHNVD
EPSS
3.7%
top 11.99%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Libvncserver Project LibvncserverLibvnc Project LibvncserverCanonical Ubuntu Linux+1 more
Timeline
PublishedDec 19
Latest updateMay 13

Description

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

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶Debianlibvncserver_project/libvncserver< 0.9.11+dfsg-1.2+3

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, 16.04, 18.04, 18.10

🔴Vulnerability Details

4
GHSA
GHSA-4834-x9v4-h8m7: LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS↗2022-05-13
▶
OSV
italc vulnerabilities↗2020-09-28
▶
CVEList
CVE-2018-20024: LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS↗2018-12-19
▶
OSV
CVE-2018-20024: LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS↗2018-12-19
▶

📋Vendor Advisories

6
Ubuntu
iTALC vulnerabilities↗2020-10-20
▶
Ubuntu
iTALC vulnerabilities↗2020-09-28
▶
Ubuntu
SSVNC vulnerabilities↗2020-09-28
▶
Ubuntu
LibVNCServer vulnerabilities↗2019-01-31
▶
Red Hat
libvncserver: NULL pointer dereference in VNC client code allows for denial of service↗2018-12-19
▶

💬Community

3
Bugzilla
CVE-2018-20024 libvncserver: NULL pointer dereference in VNC client code allows for denial of service [fedora-all]↗2018-12-20
▶
Bugzilla
CVE-2018-20024 libvncserver: NULL pointer dereference in VNC client code allows for denial of service↗2018-12-20
▶
Bugzilla
CVE-2018-20024 libvncserver: NULL pointer dereference in VNC client code allows for denial of service [epel-7]↗2018-12-20
▶
CVE-2018-20024 — NULL Pointer Dereference | cvebase