Ubuntu 16.04 LTS / 18.04 LTS : X.Org X Server vulnerabilities (USN-7299-2)

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7299-2 advisory. USN-7299-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS...

USN-7299-1: X.Org X Server vulnerabilities

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could use these issues to cause the X Server to crash, leading to a denial of service, or possibly execute arbitrary code...

CVE-2025-26596 Xorg: xwayland: heap overflow in xkbwritekeysyms()

A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms differs from what is written in XkbWriteKeySyms, which may lead to a heap-based buffer overflow...

xorg server -- Multiple vulnerabilities

The X.Org project reports: CVE-2025-26594: Use-after-free of the root cursor The root cursor is referenced in the xserver as a global variable. If a client manages to free the root cursor, the internal reference points to freed memory and causes a use-after-free. CVE-2025-26595: Buffer overflow i...

CentOS 9 : tigervnc-1.12.0-9.el9

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the tigervnc-1.12.0-9.el9 build changelog. - A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory...

Oracle Linux 8 : xorg-x11-server-Xwayland (ELSA-2023-2805)

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2023-2805 advisory. - Fix CVE-2023-0494 2166972 - Follow-up fix for CVE-2022-46340 2151777 - CVE fix for: CVE-2022-4283 2151802, CVE-2022-46340 2151777, CVE-2022-46341...

SUSE SLED15: xorg-x11-server / xorg-x11-server-extra / xorg-x11-server-sdk / etc (SUSE-SU-2022:4479-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:4479-1 advisory. - CVE-2022-46340: Server XTestSwapFakeInput stack overflow bsc1205874 - CVE-2022-46341: Server...

CVE-2013-6424

Integer underflow in the xTrapezoidValid macro in render/picture.h in X.Org allows context-dependent attackers to cause a denial of service crash via a negative bottom value...

MGASA-2013-0186 Updated X.org packages fix multiple security vulnerabilities

Ilja van Sprundel of IOActive discovered several security issues in multiple components of the X.org graphics stack and the related libraries: Various integer overflows, sign handling errors in integer conversions, buffer overflows, memory corruption and missing input sanitising may lead to...

CVE-2013-1991

Multiple integer overflows in X.org libXxf86dga 1.1.3 and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the 1 XDGAQueryModes and 2 XDGASetMode functions...

CVE-2013-1940

X.Org X server before 1.13.4 and 1.4.x before 1.14.1 does not properly restrict access to input events when adding a new hot-plug device, which might allow physically proximate attackers to obtain sensitive information, as demonstrated by reading passwords from a tty...

USN-403-1: X.org vulnerabilities

The DBE and Render extensions in X.org were vulnerable to integer overflows, which could lead to memory overwrites. An authenticated user could make a specially crafted request and execute arbitrary code with root privileges...

CVE-2006-4447

X.Org and XFree86, including libX11, xdm, xf86dga, xinit, xload, xtrans, and xterm, does not check the return values for setuid and seteuid calls when attempting to drop privileges, which might allow local users to gain privileges by causing those calls to fail, such as by exceeding a ulimit...

Mandrake Linux Security Advisory : xorg-x11 (MDKSA-2004:124)

Chris Evans found several stack and integer overflows in the libXpm code of X.Org/XFree86 : Stack overflows CVE-2004-0687 : Careless use of strcat in both the XPMv1 and XPMv2/3 xpmParseColors code leads to a stack based overflow parse.c. Stack overflow reading pixel values in ParseAndPutPixels...