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.


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


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

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://usn.ubuntu.com/4547-1/
https://usn.ubuntu.com/4587-1/
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 cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20748
NVD Published Date:
01/30/2019
NVD Last Modified:
10/23/2020
Source:
MITRE