Detections
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MiracleLinux 4 : tigervnc-1.0.90-0.15.20110314svn4359.AXS4.1 (AXSA:2011-641:01)

medium Nessus Plugin ID 284212

Synopsis

The remote MiracleLinux host is missing a security update.

Description

The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2011-641:01 advisory.

 Virtual Network Computing (VNC) is a remote display system which allows you to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures.
 This package contains a client which will allow you to connect to other desktops running a VNC server.
 Security issues fixed with this release:
 CVE-2011-1775 The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate.

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected tigervnc and / or tigervnc-server packages.

See Also

https://tsn.miraclelinux.com/en/node/2358

Plugin Details

Severity: Medium

ID: 284212

File Name: miracle_linux_AXSA-2011-641.nasl

Version: 1.1

Type: local

Published: 1/14/2026

Updated: 1/14/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: High

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-2011-1775

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: cpe:/o:miracle:linux:4, p-cpe:/a:miracle:linux:tigervnc, p-cpe:/a:miracle:linux:tigervnc-server

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/MiracleLinux/release, Host/MiracleLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/28/2011

Vulnerability Publication Date: 5/4/2011

Reference Information

CVE: CVE-2011-1775