EulerOS 2.0 SP8 : tigervnc (EulerOS-SA-2020-2536)

high Nessus Plugin ID 144149

Synopsis

The remote EulerOS host is missing a security update.

Description

According to the version of the tigervnc packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

- In rfb/CSecurityTLS.cxx and rfb/CSecurityTLS.java in TigerVNC before 1.11.0, viewers mishandle TLS certificate exceptions. They store the certificates as authorities, meaning that the owner of a certificate could impersonate any server after a client had added an exception.(CVE-2020-26117)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected tigervnc package.

See Also

http://www.nessus.org/u?10966b0c

Plugin Details

Severity: High

ID: 144149

File Name: EulerOS_SA-2020-2536.nasl

Version: 1.4

Type: local

Published: 12/14/2020

Updated: 2/2/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2020-26117

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:tigervnc, p-cpe:/a:huawei:euleros:tigervnc-icons, p-cpe:/a:huawei:euleros:tigervnc-license, p-cpe:/a:huawei:euleros:tigervnc-server, p-cpe:/a:huawei:euleros:tigervnc-server-minimal, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Exploit Ease: No known exploits are available

Patch Publication Date: 12/14/2020

Reference Information

CVE: CVE-2020-26117