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

    - Fix CVE-2020-14363 (#1873923)

    mesa
    - CVE fix for: CVE-2020-14347 (#1862320)
    - CVE fixes for: CVE-2020-14345 (#1872391), CVE-2020-14346 (#1872395),       CVE-2020-14361 (#1872402), CVE-2020-14362 (#1872409)

Tenable has extracted the preceding description block directly from the Oracle 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 Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0087 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2020-14344:
    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-2020-14345:
    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-2020-14346:
    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.

    CVE-2020-14347:
    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-2020-14360:
    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-2020-14361:
    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-2020-14362:
    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-2020-14363:
    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-2020-25712:
    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.

Tenable has extracted the preceding description block directly from the Alibaba Cloud 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.

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.

According to the version of the xorg-x11-server packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - Common files shared among all X servers.Security     Fix(es):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)

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

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 the X.Org Server. 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 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)

  - 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 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)

  - 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-2020-14362)

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

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 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 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)

  - 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)

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

According to the versions of the xorg-x11-server packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - 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-2020-14362)

  - 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)

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

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has xorg-x11-server packages installed that are affected by multiple vulnerabilities:

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

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

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

  - 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)

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 libX11 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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote NewStart CGSL host, running version MAIN 6.06, has xorg-x11-server packages installed that are affected by multiple vulnerabilities:

  - A vulnerability was found in X.Org. This security flaw occurs because the handler for the XIChangeProperty     request has a length-validation issues, resulting in out-of-bounds memory reads and potential information     disclosure. This issue can lead to local privileges elevation on systems where the X server is running     privileged and remote code execution for ssh X forwarding sessions. (CVE-2022-46344)

  - A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access     can occur in the SwapCreateRegister function. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability. (CVE-2021-4011)

  - 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)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
149948	Oracle Linux 8 : userspace / graphics, / xorg-x11, / and / mesa (ELSA-2021-1804)	Nessus	Oracle Linux Local Security Checks	2021/5/26	2024/11/1	high
236431	Alibaba Cloud Linux 3 : 0087: userspace graphics, xorg-x11, and mesa (ALINUX3-SA-2022:0087)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/5/14	high
139835	SUSE SLED15 / SLES15 Security Update : xorg-x11-server (SUSE-SU-2020:2240-1)	Nessus	SuSE Local Security Checks	2020/8/26	2021/1/13	high
139846	SUSE SLES12 Security Update : xorg-x11-server (SUSE-SU-2020:2325-1)	Nessus	SuSE Local Security Checks	2020/8/26	2020/9/17	high
142099	EulerOS 2.0 SP5 : xorg-x11-server (EulerOS-SA-2020-2302)	Nessus	Huawei Local Security Checks	2020/10/30	2021/1/20	medium
145118	EulerOS 2.0 SP3 : xorg-x11-server (EulerOS-SA-2021-1132)	Nessus	Huawei Local Security Checks	2021/1/20	2024/1/29	high
146654	EulerOS 2.0 SP2 : xorg-x11-server (EulerOS-SA-2021-1373)	Nessus	Huawei Local Security Checks	2021/2/22	2024/1/19	high
147075	EulerOS Virtualization for ARM 64 3.0.6.0 : xorg-x11-server (EulerOS-SA-2021-1564)	Nessus	Huawei Local Security Checks	2021/3/4	2024/1/16	high
147371	NewStart CGSL CORE 5.04 / MAIN 5.04 : xorg-x11-server Multiple Vulnerabilities (NS-SA-2021-0013)	Nessus	NewStart CGSL Local Security Checks	2021/3/10	2024/1/11	high
149765	CentOS 8 : userspace graphics, xorg-x11, and mesa (CESA-2021:1804)	Nessus	CentOS Local Security Checks	2021/5/19	2023/12/29	high
160742	NewStart CGSL MAIN 6.02 : libX11 Multiple Vulnerabilities (NS-SA-2022-0056)	Nessus	NewStart CGSL Local Security Checks	2022/5/9	2023/10/30	high
223320	Linux Distros Unpatched Vulnerability : CVE-2020-14347	Nessus	Misc.	2025/3/4	2025/9/3	medium
266275	NewStart CGSL MAIN 6.06 : xorg-x11-server Multiple Vulnerabilities (NS-SA-2025-0235)	Nessus	NewStart CGSL Local Security Checks	2025/9/30	2025/9/30	high

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