The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:1804 advisory.

  - An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was     implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid     programs call XIM client functions while running with elevated privileges. No such programs are shipped     with Red Hat Enterprise Linux. (CVE-2020-14344)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14345)

  - 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. (CVE-2020-14346)

  - A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server     memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in     possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. (CVE-2020-14347)

  - A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14360)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-     buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361,     CVE-2020-14362)

  - An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local     privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in     arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as     system availability. (CVE-2020-14363)

  - A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to     a privilege escalation vulnerability. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2020-25712)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has xorg-x11-server packages installed that are affected by multiple vulnerabilities:

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14345)

  - 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. (CVE-2020-14346)

  - A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server     memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in     possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. (CVE-2020-14347)

  - A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14360)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-     buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361,     CVE-2020-14362)

  - A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to     a privilege escalation vulnerability. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2020-25712)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version MAIN 6.02, has xorg-x11-server packages installed that are affected by multiple vulnerabilities:

  - An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was     implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid     programs call XIM client functions while running with elevated privileges. No such programs are shipped     with Red Hat Enterprise Linux. (CVE-2020-14344)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14345)

  - 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. (CVE-2020-14346)

  - A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server     memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in     possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. (CVE-2020-14347)

  - A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14360)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-     buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361,     CVE-2020-14362)

  - An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local     privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in     arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as     system availability. (CVE-2020-14363)

  - A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to     a privilege escalation vulnerability. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2020-25712)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2021:1804 advisory.

  - An integer overflow leading to a heap-buffer overflow was found in The X Input Method (XIM) client was     implemented in libX11 before version 1.6.10. As per upstream this is security relevant when setuid     programs call XIM client functions while running with elevated privileges. No such programs are shipped     with Red Hat Enterprise Linux. (CVE-2020-14344)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14345)

  - 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. (CVE-2020-14346)

  - A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server     memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in     possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable. (CVE-2020-14347)

  - A flaw was found in the X.Org Server before version 1.20.10. An out-of-bounds access in the XkbSetMap     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14360)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-     buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361,     CVE-2020-14362)

  - An integer overflow vulnerability leading to a double-free was found in libX11. This flaw allows a local     privileged attacker to cause an application compiled with libX11 to crash, or in some cases, result in     arbitrary code execution. The highest threat from this flaw is to confidentiality, integrity as well as     system availability. (CVE-2020-14363)

  - A flaw was found in xorg-x11-server before 1.20.10. A heap-buffer overflow in XkbSetDeviceInfo may lead to     a privilege escalation vulnerability. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2020-25712)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4910 advisory.

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14345)

  - 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. (CVE-2020-14346)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-     buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361,     CVE-2020-14362)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4953 advisory.

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Out-Of-Bounds access in XkbSetNames     function may lead to a privilege escalation vulnerability. The highest threat from this vulnerability is     to data confidentiality and integrity as well as system availability. (CVE-2020-14345)

  - 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. (CVE-2020-14346)

  - A flaw was found in X.Org Server before xorg-x11-server 1.20.9. An Integer underflow leading to heap-     buffer overflow may lead to a privilege escalation vulnerability. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-14361,     CVE-2020-14362)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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 (bsc#1174633, ZDI-CAN-11426).

CVE-2020-14346: XIChangeHierarchy Integer Underflow Privilege Escalation Vulnerability (bsc#1174638, ZDI-CAN-11429).

CVE-2020-14345: XKB out-of-bounds access privilege escalation vulnerability (bsc#1174635, ZDI-CAN-11428).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Several issues have been found in xorg-server, the X server from xorg.
Basically all issues are out-of-bounds access or integer underflows in different request handlers. One CVE is about a leak of uninitialize heap memory to clients.

For Debian 9 stretch, these problems have been fixed in version 2:1.19.2-1+deb9u6.

We recommend that you upgrade your xorg-server packages.

For the detailed security status of xorg-server please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/xorg-server

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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     (bsc#1174633, ZDI-CAN-11426).

  - CVE-2020-14346: XIChangeHierarchy Integer Underflow     Privilege Escalation Vulnerability (bsc#1174638,     ZDI-CAN-11429).

  - CVE-2020-14345: XKB out-of-bounds access privilege     escalation vulnerability (bsc#1174635, ZDI-CAN-11428).

This update was imported from the SUSE:SLE-15-SP2:Update update project.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1804 advisory.

    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.

    Mesa provides a 3D graphics API that is compatible with Open Graphics Library (OpenGL). It also provides     hardware-accelerated drivers for many popular graphics chips.

    The following packages have been upgraded to a later upstream version: egl-wayland (1.1.5), libdrm     (2.4.103), libglvnd (1.3.2), libinput (1.16.3), libwacom (1.6), mesa (20.3.3), xorg-x11-server (1.20.10).
    (BZ#1878160, BZ#1886648, BZ#1887654, BZ#1887655)

    Security Fix(es):

    * xorg-x11-server: Out-of-bounds access in XkbSetNames function (CVE-2020-14345)

    * xorg-x11-server: Integer underflow in the X input extension protocol (CVE-2020-14346)

    * xorg-x11-server: Out-of-bounds access in XkbSetMap function (CVE-2020-14360)

    * xorg-x11-server: XkbSelectEvents integer underflow privilege escalation vulnerability (CVE-2020-14361)

    * xorg-x11-server: XRecordRegisterClients integer underflow privilege escalation vulnerability     (CVE-2020-14362)

    * libX11: Integer overflow leads to double free in locale handling (CVE-2020-14363)

    * xorg-x11-server: XkbSetDeviceInfo heap-based buffer overflow privilege escalation vulnerability     (CVE-2020-25712)

    * libX11: Heap overflow in the X input method client (CVE-2020-14344)

    * xorg-x11-server: Leak of uninitialized heap memory from the X server to clients in AllocatePixmap of     dix/pixmap.c (CVE-2020-14347)

    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.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2020-944:01 advisory.

    * xorg-x11-server: Out-of-bounds access in XkbSetNames function (CVE-2020-14345)
      * xorg-x11-server: Integer underflow in the X input extension protocol (CVE-2020-14346)
      * xorg-x11-server: XkbSelectEvents integer underflow privilege escalation vulnerability (CVE-2020-14361)
      * xorg-x11-server: XRecordRegisterClients integer underflow privilege escalation vulnerability     (CVE-2020-14362)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
184506	Rocky Linux 8 : userspace graphics, xorg-x11, and mesa (RLSA-2021:1804)	Nessus	Rocky Linux Local Security Checks	11/6/2023	11/6/2023	high
154464	NewStart CGSL CORE 5.05 / MAIN 5.05 : xorg-x11-server Multiple Vulnerabilities (NS-SA-2021-0145)	Nessus	NewStart CGSL Local Security Checks	10/27/2021	11/27/2023	high
160787	NewStart CGSL MAIN 6.02 : xorg-x11-server Multiple Vulnerabilities (NS-SA-2022-0049)	Nessus	NewStart CGSL Local Security Checks	5/9/2022	10/30/2023	high
157526	AlmaLinux 8 : userspace graphics, xorg-x11, and mesa (ALSA-2021:1804)	Nessus	Alma Linux Local Security Checks	2/9/2022	11/13/2023	high
142607	CentOS 7 : xorg-x11-server (RHSA-2020:4910)	Nessus	CentOS Local Security Checks	11/6/2020	10/9/2024	high
142644	CentOS 6 : xorg-x11-server (RHSA-2020:4953)	Nessus	CentOS Local Security Checks	11/9/2020	10/9/2024	high
139905	SUSE SLES12 Security Update : xorg-x11-server (SUSE-SU-2020:2331-1)	Nessus	SuSE Local Security Checks	8/27/2020	1/13/2021	high
140058	Debian DLA-2359-1 : xorg-server security update	Nessus	Debian Local Security Checks	8/31/2020	9/17/2020	high
140080	openSUSE Security Update : xorg-x11-server (openSUSE-2020-1302)	Nessus	SuSE Local Security Checks	8/31/2020	9/17/2020	high
149659	RHEL 8 : userspace graphics, xorg-x11, and mesa (RHSA-2021:1804)	Nessus	Red Hat Local Security Checks	5/19/2021	11/7/2024	high
294555	MiracleLinux 4 : xorg-x11-server-1.17.4-18.0.1.AXS4 (AXSA:2020-944:01)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	high

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