CVE Vulnerability

CVE-2018-20749

LibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.

7.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.openwall.com/lists/oss-security/2018/12/10/8 Exploit Mailing List
https://github.com/LibVNC/libvncserver/issues/273 Issue Tracking Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/15bb719c03cc70f14c36a843dcb16ed69b405707 Patch Third Party Advisory
https://usn.ubuntu.com/3877-1/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html Third Party Advisory
http://www.securityfocus.com/bid/106825 Broken Link
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html Mailing List Third Party Advisory
https://usn.ubuntu.com/4547-1/ Third Party Advisory
https://usn.ubuntu.com/4587-1/ Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2019-01-30 06:29

Updated : 2022-03-09 09:54

NVD link : CVE-2018-20749

Mitre link : CVE-2018-20749

Products Affected

Siemens

Simatic Itc2200 Pro Firmware

CWE
CWE-787