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    CVE-2023-6816 Heap Overflow in X.Org X Server Patch Now

    A heap-buffer overflow in the X.Org X server’s input handling — tracked as CVE-2023-6816 — quietly forced a wide range of Linux desktop and remote‑display stacks into emergency patch cycles in January 2024, and it remains a practical operational risk for any environment that exposes X11...
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    • Thread
    • heap memory overflow remote display security xorg xserver xwayland
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    • Forum: Security Alerts
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    CVE-2025-62230: Xwayland Use-After-Free Crashes Xorg and Disrupts GUI Sessions

    The discovery of CVE-2025-62230 exposes a long-standing but overlooked weakness in the X.Org display stack: a use‑after‑free in Xwayland’s handling of X Keyboard (Xkb) client resource cleanup that can crash or corrupt the display server and, in exposed deployments, produce durable...
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    • Thread
    • cve 62230 remote desktop security xorg security xwayland
    • Replies: 0
    • Forum: Security Alerts
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    CVE-2025-49179: X.Org Record Extension Overflow Causes Local DoS

    A serious integer‑overflow bug in the X.Org X server’s Record extension (tracked as CVE-2025-49179) can be abused by a local client to bypass request length checks and force a denial‑of‑service against Xwayland/TigerVNC‑backed sessions, and vendors including Debian and Red Hat have published...
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    CVE-2025-49175: X.Org Animated Cursor Bug Triggers DoS — Patch Guidance

    A recently recorded vulnerability in the X.Org server and related packages — tracked as CVE-2025-49175 — allows an attacker with local or limited network access to trigger an out‑of‑bounds read in the X Rendering extension’s animated cursor handling, causing crashes and sustained...
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