CVE-2018-20023
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
LibVNC before 8b06f835e259652b0ff026898014fc7297ade858 contains CWE-665: Improper Initialization vulnerability in VNC Repeater 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
Overview
- CVE ID
- CVE-2018-20023
- Assigner
- vulnerability@kaspersky.com
- Vulnerability Status
- Modified
- Published Version
- 2018-12-19T16:29:00
- Last Modified Date
- 2020-10-23T13:15:14
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:* | 1 | OR | 0.9.12 | |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 1 | OR | ||
| cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-033-libvnc-memory-leak/ | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2018/12/msg00017.html | Mailing List Third Party Advisory |
| https://usn.ubuntu.com/3877-1/ | Third Party Advisory |
| https://www.debian.org/security/2019/dsa-4383 | Third Party Advisory |
| https://security.gentoo.org/glsa/201908-05 | |
| https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html | |
| https://usn.ubuntu.com/4547-1/ | |
| https://usn.ubuntu.com/4587-1/ |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-20023 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20023 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:22:20 | Added to TrackCVE | |||
| 2022-12-03 15:29:43 | 2018-12-19T16:29Z | 2018-12-19T16:29:00 | CVE Published Date | updated |
| 2022-12-03 15:29:43 | 2020-10-23T13:15:14 | CVE Modified Date | updated | |
| 2022-12-03 15:29:43 | Modified | Vulnerability Status | updated |