SSVNC vulnerabilities

2020-09-2800:00:00

ubuntu.com

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.3 High

AI Score

Confidence

High

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.217 Low

EPSS

Percentile

96.4%

JSON

Releases

Ubuntu 16.04 ESM

Packages

ssvnc - Enhanced TightVNC viewer with SSL/SSH tunnel helper

Details

It was discovered that the LibVNCClient vendored in SSVNC incorrectly handled
certain packet lengths. A remote attacker could possibly use this issue to
obtain sensitive information, cause a denial of service, or execute arbitrary
code. (CVE-2018-20020, CVE-2018-20021, CVE-2018-20022, CVE-2018-2024)

OSVersionArchitecturePackageVersionFilename
Ubuntu16.04noarchssvnc< 1.0.29-2+deb8u1build0.16.04.1UNKNOWN
Ubuntu16.04noarchssvnc-dbgsym< 1.0.29-2+deb8u1build0.16.04.1UNKNOWN