25 matches found
TigerVNC: x0vncserver: TigerVNC x0vncserver: Information disclosure, data manipulation, and denial of service via incorrect permissions
A flaw was found in TigerVNC's x0vncserver component. Due to incorrect permissions in the Image.cxx file, other users on the system can observe or manipulate the screen contents of a running session. This vulnerability could also lead to an application crash, resulting in a Denial of Service DoS...
CLSA-2026-1779497454 tigervnc: Fix of CVE-2026-34000
CVE-2026-34000: widen bounds check in CheckSetGeom to cover both key alias names 2 XkbKeyNameLength and prevent out-of-bounds read of uninitialized memory in XkbAddGeomKeyAlias bundled xorg-server...
Important: Red Hat Security Advisory: tigervnc security update
An update for tigervnc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...
RHEL 8 : tigervnc (RHSA-2026:13414)
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:13414 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...
Amazon Linux 2 : tigervnc, --advisory ALAS2-2026-3231 (ALAS-2026-3231)
The version of tigervnc installed on the remote host is prior to 1.8.0-24. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3231 advisory. In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an...
RHEL 8 : tigervnc (RHSA-2025:22164)
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22164 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...
RHEL 7 : tigervnc (RHSA-2025:22096)
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:22096 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...
Unity Linux 20.1060a / 20.1070a Security Update: tigervnc (UTSA-2025-990941)
The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990941 advisory. A flaw was found in the X.Org X server and Xwayland when processing X11 Present extension notifications. Improper error handling during notification creation can lea...
RHEL 9 : tigervnc (RHSA-2025:20958)
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2025:20958 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...
Linux Distros Unpatched Vulnerability : CVE-2019-15693
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could...
Medium: tigervnc
Issue Overview: A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash. CVE-2025-49175 A flaw was found in the Big Requests extension. The reque...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension
A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors
A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore
A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors
A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors
A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore
A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors
A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension
A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check...
xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors
A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash...