CVE-2023-3354 Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service

A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QE...

CVE-2023-3354

CVE-2023-3354 affects the QEMU built-in VNC server. The issue arises from improper I/O watch removal during TLS handshake, which can lead to a NULL pointer dereference when a previously-handshake connection is cleaned up during new connections. This allows a remote unauthenticated attacker to cau...

CVE-2023-3354 Improper i/o watch removal in tls handshake can lead to remote unauthenticated denial of service

A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QE...

SUSE CVE-2023-3255

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the inflatebuffer function. This could allow a remote authenticated client who is able to send a...

CVE-2023-3255

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the inflatebuffer function. This could allow a remote authenticated client who is able to send a...

PT-2023-9176 · Qemu +10 · Qemu +10

Name of the Vulnerable Software and Affected Versions: QEMU affected versions not specified Description: A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker-controlled zlib buffer ...

CVE-2023-3354

A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QE...

PT-2023-4596

Name of the Vulnerable Software and Affected Versions QEMU affected versions not specified Description A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up...

AlmaLinux 8 : virt:rhel and virt-devel:rhel (ALSA-2023:2757)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:2757 advisory. ntfs-3g: heap-based buffer overflow in ntfsck CVE-2021-46790 QEMU: VNC: integer underflow in vncclientcuttextext leads to CPU exhaustion CVE-2022-3165...

QEMU: VNC: integer underflow in vnc_client_cut_text_ext leads to CPU exhaustion

An integer underflow issue was found in the QEMU built-in VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service...

CentOS 8 : virt:rhel and virt-devel:rhel (CESA-2023:2757)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2023:2757 advisory. - ntfsck in NTFS-3G through 2021.8.22 has a heap-based buffer overflow involving buffer+5123-2. NOTE: the upstream position is that ntfsck is deprecate...

QEMU: VNC: integer underflow in vnc_client_cut_text_ext leads to CPU exhaustion

An integer underflow issue was found in the QEMU built-in VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service...

CVE-2023-1617

Improper Authentication vulnerability in B&R Industrial Automation B&R VC4 VNC-Server modules. This vulnerability may allow an unauthenticated network-based attacker to bypass the authentication mechanism of the VC4 visualization on affected devices. The impact of this vulnerability depends on th...

CVE-2023-1617

CVE-2023-1617 concerns the B&R VC4 visualization (VNC-Server modules) where an unauthenticated network attacker can bypass authentication. Affected are B&R VC4 versions across multiple series: 3.* (to 3.96.7), 4.0* (to 4.06.7), 4.1* (to 4.16.3), 4.2* (to 4.26.8), 4.3* (to 4.34.6), 4.4* (to 4.45.1...

[SECURITY] Fedora 36 Update: tigervnc-1.13.1-1.fc36

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 ...

Oracle Linux 8 : virt:kvm_utils2 (ELSA-2023-12195)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12195 advisory. - hw/pvrdma: Protect against buggy or malicious guest driver Yuval Shaia Orabug: 35064352 CVE-2022-1050 - hw/display/qxl: Avoid buffer overrun in...

[SECURITY] Fedora 38 Update: neatvnc-0.6.0-2.fc38

This is a liberally licensed VNC server library that's intended to be fast and neat. Note: This is a beta release, so the interface is not yet stable...

Fedora: Security Advisory for neatvnc (FEDORA-2023-a5e10b188a)

The remote host is missing an update for the Copyright C 2023 Greenbone Networks GmbH 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-or-later This program is free software; you can...

SUSE CVE-2009-3616

Multiple use-after-free vulnerabilities in vnc.c in the VNC server in QEMU 0.10.6 and earlier might allow guest OS users to execute arbitrary code on the host OS by establishing a connection from a VNC client and then 1 disconnecting during data transfer, 2 sending a message using incorrect integ...

SUSE CVE-2010-5304

A NULL pointer dereference flaw was found in the way LibVNCServer before 0.9.9 handled certain ClientCutText message. A remote attacker could use this flaw to crash the VNC server by sending a specially crafted ClientCutText message from a VNC client...