Most recent entries from all

ALSA-2025:9303 — Important: xorg-x11-server and xorg-x11-server-Xwayland security update

Affected: AlmaLinux:9: xorg-x11-server-Xdmx, AlmaLinux:9: xorg-x11-server-Xephyr, AlmaLinux:9: xorg-x11-server-Xnest, AlmaLinux:9: xorg-x11-server-Xorg, AlmaLinux:9: xorg-x11-server-Xvfb, AlmaLinux:9: xorg-x11-server-Xwayland, AlmaLinux:9: xorg-x11-server-Xwayland-devel, AlmaLinux:9: xorg-x11-server-common, AlmaLinux:9: xorg-x11-server-devel, AlmaLinux:9: xorg-x11-server-source

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.

Security Fix(es):

* xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors (CVE-2025-49175) * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension (CVE-2025-49176) * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore (CVE-2025-49178) * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer overflow in X Record extension (CVE-2025-49179) * xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in X Resize, Rotate and Reflect (RandR) Extension (CVE-2025-49180)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

bdu:2025-07022

BELL-CVE-2025-49180

Affected: Alpaquita:23: xorg-server, Alpaquita:25: xorg-server, Alpaquita:stream: xorg-server

EUVD-2026-331247

fkie_cve-2025-49180

A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly validate input. This issue leads to an integer overflow when computing the total size to allocate.

GHSA-gpcr-p5wh-5x85

msrc_CVE-2025-49180 — Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x resize, rotate and reflect (randr) extension

msrc_CVE-2025-49180

OESA-2026-1380 — xorg-x11-server security update

Affected: openEuler:24.03-LTS-SP2: xorg-x11-server, openEuler:24.03-LTS-SP3: xorg-x11-server, openEuler:20.03-LTS-SP4: xorg-x11-server, openEuler:22.03-LTS-SP4: xorg-x11-server, openEuler:24.03-LTS: xorg-x11-server, openEuler:24.03-LTS-SP1: xorg-x11-server

X.Org X11 X server Security Fix(es):

In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.(CVE-2022-49737)

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 request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check.(CVE-2025-49176)

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.(CVE-2025-49178)

A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.(CVE-2025-49179)

openSUSE-SU-2025:15310-1 — xorg-x11-server-21.1.15-6.1 on GA media

xorg-x11-server-21.1.15-6.1 on GA media

RHSA-2025:10258 — Red Hat Security Advisory: xorg-x11-server-Xwayland security update

xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Out-of-Bounds Read in X Rendering Extension Animated Cursors xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in Big Requests Extension xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Data Leak in XFIXES Extension's XFixesSetClientDisconnectMode xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Unprocessed Client Request Due to Bytes to Ignore xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer overflow in X Record extension xorg-x11-server-Xwayland: xorg-x11-server: tigervnc: Integer Overflow in X Resize, Rotate and Reflect (RandR) Extension

SUSE-SU-2025:01974-1 — Security update for xwayland

Security update for xwayland

UBUNTU-CVE-2025-49180

Affected: Ubuntu:Pro:14.04:LTS: xorg-server, Ubuntu:Pro:16.04:LTS: xorg-server, Ubuntu:Pro:16.04:LTS: xorg-server-hwe-16.04, Ubuntu:Pro:18.04:LTS: xorg-server, Ubuntu:Pro:18.04:LTS: xorg-server-hwe-18.04, Ubuntu:Pro:20.04:LTS: xorg-server, Ubuntu:22.04:LTS: xorg-server, Ubuntu:22.04:LTS: xwayland, Ubuntu:24.04:LTS: xorg-server, Ubuntu:24.04:LTS: xwayland and 4 more

WID-SEC-W-2025-1352 — X.Org X11 und Xwayland: Mehrere Schwachstellen

Ein lokaler Angreifer kann mehrere Schwachstellen in X.Org X11 und Xwayland ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen und möglicherweise Code auszuführen oder nicht näher spezifizierte Auswirkungen zu erzielen.