2386 matches found
xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: out-of-bounds read/write in GLX ChangeDrawableAttributes
An out-of-bounds read flaw was found in the X.Org X server and Xwayland in glXDispChangeDrawableAttributes. A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapp...
xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in XKB SetMap request via mapWidths indexing
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. XkbSetMapChecks declares a fixed-size stack buffer mapWidths256 indexed by key type index. The helper function CheckKeyTypes writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This...
Important: Red Hat Security Advisory: tigervnc security update
An update for tigervnc is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...
Important: Red Hat Security Advisory: tigervnc security update
An update for tigervnc is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. 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...
MiracleLinux 9 : xorg-x11-server-Xwayland-24.1.9-4.el9_8.2 (AXSA:2026-1355:07)
The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1355:07 advisory. xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch...
RHEL 7 : tigervnc (RHSA-2026:46473)
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:46473 advisory. Virtual Network Computing VNC is a remote display system which allows users to view a computing desktop environment not only on the machine...
MiracleLinux 9 : xorg-x11-server-1.20.11-34.el9_8.2 (AXSA:2026-1354:12)
The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1354:12 advisory. xorg-x11-server: xorg-x11-server-Xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libXfont2 name length mismatch...
RHEL 8 : tigervnc (RHSA-2026:46385)
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:46385 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 : xorg-x11-server, --advisory ALAS2-2026-3806 (ALAS-2026-3806)
It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3806 advisory. glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Tenable has extracted the preceding description block directly from the tested product security advisory. Note that Nessus has not tested for this iss...
Important: xorg-x11-server
Issue Overview: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Affected Packages: xorg-x11-server Issue Correction: Run dnf update xorg-x11-server --releasever 2023.12.20260720 or dnf update --advisory ALAS2023-2026-1943 --releasever 2023.12.20260720 to update your system. More information...
Important: xorg-x11-server-Xwayland
Issue Overview: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 GLX contextTags Use-After-Free in CommonMakeCurrent CVE-2026-56000 Affected Packages: xorg-x11-server-Xwayland Issue Correction: Run dnf update xorg-x11-server-Xwayland --releasever 2023.12.20260720 or dnf update --advisory...
Amazon Linux 2023 : xorg-x11-server-common, xorg-x11-server-devel, xorg-x11-server-source (ALAS2023-2026-1943)
It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1943 advisory. glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Tenable has extracted the preceding description block directly from the tested product security advisory. Note that Nessus has not tested for this...
Amazon Linux 2023 : xorg-x11-server-Xwayland, xorg-x11-server-Xwayland-devel (ALAS2023-2026-1944)
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1944 advisory. glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 GLX contextTags Use-After-Free in CommonMakeCurrent CVE-2026-56000 Tenable has extracted the preceding description block directly from the...
Oracle Linux 10 : xorg-x11-server-Xwayland (ELSA-2026-26566)
The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-26566 advisory. - CVE fix for: CVE-2026-50256, CVE-2026-50257, CVE-2026-50258, CVE-2026-50259, CVE-2026-50260, CVE-2026-50261, CVE-2026-50262, CVE-2026-50263 Resolve...
MiracleLinux 8 : xorg-x11-server-1.20.11-28.el8_10.3 (AXSA:2026-1275:10)
The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1275:10 advisory. xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Tenable has extracted the preceding description block directly from the...
RLSA-2026:38490 Important: xorg-x11-server-Xwayland security update
Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 X.org: xorg-x11-server: GLX contextTags Use-After-Free in CommonMakeCurrent CVE-2026-56000 For more details about the security issues,...
RLSA-2026:38486 Important: xorg-x11-server security update
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 Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 For more details about the...
RockyLinux 8 : xorg-x11-server (RLSA-2026:38487)
The remote RockyLinux 8 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:38487 advisory. xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Tenable has extracted the preceding description block directly from the RockyLin...
AlmaLinux 9 : xorg-x11-server (ALSA-2026:38486)
The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:38486 advisory. xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 Tenable has extracted the preceding description block directly from the AlmaLinux...