National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-20748 Detail

Current Description

LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 9.8 CRITICAL
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/LibVNC/libvncserver/commit/a64c3b37af9a6c8f8009d7516874b8d266b42bae Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/c2c4b81e6cb3b485fb1ec7ba9e7defeb889f6ba7 Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/c5ba3fee85a7ecbbca1df5ffd46d32b92757bc2a Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/e34bcbb759ca5bef85809967a268fdf214c1ad2c Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/issues/273 Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://usn.ubuntu.com/3877-1/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2018/12/10/8 Exploit Mailing List Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
0.9.12

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20748
NVD Published Date:
01/30/2019
NVD Last Modified:
10/30/2019