DEBIAN-CVE-2020-14399

An issue was discovered in LibVNCServer before 0.9.13. Byte-aligned data is accessed through uint32t pointers in libvncclient/rfbproto.c. NOTE: there is reportedly "no trust boundary crossed...

UBUNTU-CVE-2018-21247

An issue was discovered in LibVNCServer before 0.9.13. There is an information leak of uninitialized memory contents in the libvncclient/rfbproto.c ConnectToRFBRepeater function...

UBUNTU-CVE-2019-15679

TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result code execution. This attack appear to be exploitable via network connectivity...

Fedora 28 : libvncserver (2018-390001d1c7)

This release fixes a possible sensitive data leak and a memory exhaustion when handling ClientTextCut messages of the RFB protocol. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatical...

Debian DSA-4221-1 : libvncserver - security update

Alexander Peslyak discovered that insufficient input sanitising of RFB packets in LibVNCServer could result in the disclosure of memory contents. C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from Debian Security Advisory DSA-4221. The text...

Debian: Security Advisory (DSA-4221-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Amazon Linux 2 : libvncserver (ALAS-2018-1012)

Improper input sanitization in rfbProcessClientNormalMessage in rfbserver.c An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly...

Fedora 26 : libvncserver (2018-43541091ab)

This release fixes a possible sensitive data leak and a memory exhaustion when handling ClientTextCut messages of the RFB protocol. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatical...

Fedora 27 : libvncserver (2018-4897772a43)

This release fixes a possible sensitive data leak and a memory exhaustion when handling ClientTextCut messages of the RFB protocol. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatical...

VMware VNC Pointer Decode Code Execution Vulnerability(CVE-2017-4941)

Summary An exploitable code execution vulnerability exists in the remote management functionality of VMware . A specially crafted set of VNC packets can cause a type confusion resulting in stack overwrite, which could lead to code execution. An attacker can initiate a VNC session to trigger this...

VMware VNC Pointer Decode Code Execution Vulnerability

Summary An exploitable code execution vulnerability exists in the remote management functionality of VMware . A specially crafted set of VNC packets can cause a type confusion resulting in stack overwrite, which could lead to code execution. An attacker can initiate a VNC session to trigger this...

Debian Security Advisory DSA 3753-1 (libvncserver - security update)

It was discovered that libvncserver, a collection of libraries used to implement VNC/RFB clients and servers, incorrectly processed incoming network packets. This resulted in several heap-based buffer overflows, allowing a rogue server to either cause a DoS by crashing the client, or potentially...

VNC拒绝服务漏洞

前言 Qemu是一款处理器模拟软件，可以提供用户模式模拟和系统模式模拟。当处于用户模式模拟状态时，将使用动态翻译技术，允许一个cpu构建的进程在另一个cpu上执行。 VNC Virtual Network Computing是一款优秀的远程控制工具软件。由于Qemu内置vnc功能模块，所以可通过vnc客户端对远程Qemu虚拟机进行远程访问。 该漏洞危险等级为中，漏洞编号CVE-2015-5239。 VNC通讯协议介绍 VNC采用RFB通信协议。RFB “remote 帧缓存 “...

The remote control tool VNC denial of service vulnerability analysis-vulnerability warning-the black bar safety net

Original author: 3 6 0 security guard company account） LR, noirfate Foreword Qemu is a processor simulation software, can provide user-mode simulation and system mode simulation. When in the user mode of the simulation state will be used when dynamic translation technology allows a cpu to build t...

VNC denial of service vulnerability(CVE-2 0 1 5-5 2 3 9)analysis-vulnerability warning-the black bar safety net

Qemu is a processor simulation software, can provide user-mode simulation and system mode simulation. When in the user mode of the simulation state will be used when dynamic translation technology allows a cpu to build the process in another cpu. VNC Virtual Network Computing is an excellent remo...

VNC Keyboard Remote Code Execution

This module requires Metasploit: http://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require 'msf/core' require 'rex/proto/rfb' class Metasploit3 'VNC Keyboard Remote Code Execution', 'Description' = %q This module exploits VNC servers by sending virtual...

DEBIAN-CVE-2014-6053

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service memory consumption or daemon crash via a crafted...

libvncserver: remote code execution, denial of service

CVE-2014-6051 Integer overflow in MallocFrameBuffer on client side. A malicious VNC server could advertise a very large screen size by RFB protocol, width and height are 16-bit integers, resulting in an integer overflow during malloc on client-side. Heap corruption, and possibly remote code...

LibVNCServer rfbProcessClientNormalMessage msg.ssc.scale Divide by Zero Denial of Service (CVE-2014-6054)

A denial of service vulnerability exists in LibVNCserver. The vulnerability is due to a division by zero when processing an rfbSetScale message. A remote authenticated attacker can exploit this vulnerability by sending a specially crafted RFB message to the server...

VNC Server Unencrypted Communication Detection

This script checks the remote VNC server protocol version and the available 'security types' to determine if any unencrypted 'security-types' are in use or available. C Tenable Network Security, Inc. include"compat.inc"; if description scriptid65792; scriptversion"$Revision: 1.3 $";...