CVE-2018-20022high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Description
LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR
References
https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
https://lists.debian.org/debian-lts-announce/2019/11/msg00033.html
https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html
https://security.gentoo.org/glsa/201908-05
https://security.gentoo.org/glsa/202006-06
https://usn.ubuntu.com/3877-1/
https://usn.ubuntu.com/4547-1/
Details
Source: MITRE
Published: 2018-12-19
Updated: 2020-10-05
Type: CWE-665
Risk Information
CVSS v2
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
CVSS v3
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
Configuration 3
OR
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 141545 | Ubuntu 16.04 LTS : iTALC vulnerabilities (USN-4587-1) | Nessus | Ubuntu Local Security Checks | critical |
| 140929 | Ubuntu 16.04 LTS : SSVNC vulnerabilities (USN-4547-2) | Nessus | Ubuntu Local Security Checks | critical |
| 140920 | Ubuntu 18.04 LTS : iTALC vulnerabilities (USN-4547-1) | Nessus | Ubuntu Local Security Checks | critical |
| 137443 | GLSA-202006-06 : ssvnc: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | critical |
| 132345 | Debian DLA-2045-1 : tightvnc security update | Nessus | Debian Local Security Checks | critical |
| 131434 | Debian DLA-2016-1 : ssvnc security update | Nessus | Debian Local Security Checks | critical |
| 130408 | Debian DLA-1979-1 : italc security update | Nessus | Debian Local Security Checks | critical |
| 127563 | GLSA-201908-05 : LibVNCServer: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | critical |
| 123109 | EulerOS 2.0 SP3 : libvncserver (EulerOS-SA-2019-1096) | Nessus | Huawei Local Security Checks | critical |
| 122378 | EulerOS 2.0 SP2 : libvncserver (EulerOS-SA-2019-1051) | Nessus | Huawei Local Security Checks | critical |
| 122206 | EulerOS 2.0 SP5 : libvncserver (EulerOS-SA-2019-1033) | Nessus | Huawei Local Security Checks | critical |
| 121561 | Debian DSA-4383-1 : libvncserver - security update | Nessus | Debian Local Security Checks | critical |
| 121541 | Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : LibVNCServer vulnerabilities (USN-3877-1) | Nessus | Ubuntu Local Security Checks | critical |
| 121282 | openSUSE Security Update : LibVNCServer (openSUSE-2019-53) | Nessus | SuSE Local Security Checks | critical |
| 121160 | SUSE SLES11 Security Update : LibVNCServer (SUSE-SU-2019:13927-1) | Nessus | SuSE Local Security Checks | critical |
| 121158 | SUSE SLED15 / SLES15 Security Update : LibVNCServer (SUSE-SU-2019:0080-1) | Nessus | SuSE Local Security Checks | critical |
| 121154 | openSUSE Security Update : LibVNCServer (openSUSE-2019-45) | Nessus | SuSE Local Security Checks | critical |
| 121094 | SUSE SLES12 Security Update : LibVNCServer (SUSE-SU-2019:0060-1) | Nessus | SuSE Local Security Checks | critical |
| 119877 | Debian DLA-1617-1 : libvncserver security update | Nessus | Debian Local Security Checks | critical |