CVE-2020-14346

A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

USN-4488-2: X.Org X Server vulnerabilities

USN-4488-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update and also the update from USN-4490-1 for Ubuntu 14.04 ESM. Original advisory details: Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the input extension protocol. A local attack...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : X.Org X Server vulnerability (USN-4490-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4490-1 advisory. Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the XkbSetNames function. A local attacker could possibly use this...

Ubuntu: Security Advisory (USN-4490-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-4490-1: X.Org X Server vulnerability

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the XkbSetNames function. A local attacker could possibly use this issue to escalate privileges...

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : X.Org X Server vulnerabilities (USN-4488-1)

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4488-1 advisory. Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the input extension protocol. A local attacker could...

USN-4488-1 xorg-server, xorg-server-hwe-16.04, xorg-server-hwe-18.04 vulnerabilities

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled the input extension protocol. A local attacker could possibly use this issue to escalate privileges. CVE-2020-14346 Jan-Niklas Sohn discovered that the X.Org X Server incorrectly initialized memory. A local attacker could...

OPENSUSE-SU-2020:1279-1 Security update for xorg-x11-server

This update for xorg-x11-server fixes the following issues: - CVE-2020-14347: Leak of uninitialized heap memory from the X server to clients on pixmap allocation bsc1174633, ZDI-CAN-11426. - CVE-2020-14346: XIChangeHierarchy Integer Underflow Privilege Escalation Vulnerability bsc1174638,...

Security update for xorg-x11-server (important)

openSUSE Security Update: Security update for xorg-x11-server Announcement ID: openSUSE-SU-2020:1279-1 Rating: important References: 1174633 1174635 1174638 Cross-References: CVE-2020-14345 CVE-2020-14346 CVE-2020-14347 Affected Products: openSUSE Leap 15.1 An update that fixes three...

FreeBSD : xorg-server -- Multiple input validation failures in X server extensions (ffa15b3b-e6f6-11ea-8cbf-54e1ad3d6335)

The X.org project reports : All theses issuses can lead to local privileges elevation on systems where the X server is running privileged. The handler for the XkbSetNames request does not validate the request length before accessing its contents. An integer underflow exists in the handler for the...

SUSE-SU-2020:2326-1 Security update for xorg-x11-server

This update for xorg-x11-server fixes the following issues: - CVE-2020-14347: Leak of uninitialized heap memory from the X server to clients on pixmap allocation bsc1174633, ZDI-CAN-11426. - CVE-2020-14346: XIChangeHierarchy Integer Underflow Privilege Escalation Vulnerability bsc1174638,...

xorg-server -- Multiple input validation failures in X server extensions

The X.org project reports: All theses issuses can lead to local privileges elevation on systems where the X server is running privileged. The handler for the XkbSetNames request does not validate the request length before accessing its contents. An integer underflow exists in the handler for the...

Updated x11-server packages fix security vulnerability

Allocation for pixmap data in AllocatePixmap does not initialize the memory in xserver, it leads to leak uninitialize heap memory to clients. When the X server runs with elevated privileges. This flaw can lead to ASLR bypass, which when combined with other flaws known/unknown could lead to lead t...

Privilege Escalation

openssh is vulnerable privilege escalation. When ssh was unable to create untrusted cookie, ssh used a trusted cookie instead, possibly allowing the administrative user of a untrusted remote server, or untrusted application run on the remote server, to gain unintended access to a users local X...

Information Disclosure

xorg-x11-server is vulnerable to information disclosure. The vulnerability exists as a malicious authorized client could exploit this issue to cause a denial of service crash, or potentially view arbitrary memory content within the X server's address space...

Privilege Escalation

kernel is vulnerable to privilege escalation. A flaw in the DRM driver for Intel graphics cards that allowed a local user to access any part of the main memory. To access the DRM functionality a user must have access to the X server which is granted through the graphical login. This also only...

Huawei EulerOS: Security Advisory for xorg-x11-server (EulerOS-SA-2017-1296)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Huawei EulerOS: Security Advisory for libXfont (EulerOS-SA-2019-2625)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

EulerOS 2.0 SP3 : xorg-x11-server (EulerOS-SA-2019-2683)

According to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xor...

EulerOS 2.0 SP2 : xorg-x11-server (EulerOS-SA-2019-2421)

According to the versions of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - xorg-x11-server before 1.19.5 was vulnerable to integer overflow in ProcDbeGetVisualInfo function allowing malicious X client to cause ...