This update for xorg-x11-server fixes the following issues :

CVE-2020-25712: Fixed a heap-based buffer overflow which could have led to privilege escalation (bsc#1177596).

CVE-2020-14360: Fixed an out of bounds memory accesses on too short request which could lead to denial of service (bsc#1174908).

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.

The remote Scientific Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the SLSA-2020:5408-1 advisory.

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

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

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

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

According to the versions of the xorg-x11-server package 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)

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. 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.

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. 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.

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 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 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)

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 Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0114 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.

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2022:0087 advisory.

    Package updates are available for TencentOS Server 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 Tencent 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 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-2100:01 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: 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)

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.

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2021-1136:01 advisory.

    xorg-x11-server: Out-of-bounds access in XkbSetMap function (CVE-2020-14360)         xorg-x11-server: XkbSetDeviceInfo heap-based buffer overflow privilege     escalation vulnerability (CVE-2020-25712)         xorg-x11-server: Leak of uninitialized heap memory from the X server to     clients in AllocatePixmap of dix/pixmap.c (CVE-2020-14347)

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	名称	产品	系列	发布时间	最近更新时间	严重程度
143642	SUSE SLES12 Security Update : xorg-x11-server (SUSE-SU-2020:3587-1)	Nessus	SuSE Local Security Checks	2020/12/9	2024/2/6	high
144211	Scientific Linux Security Update : xorg-x11-server on SL7.x i686/x86_64 (2020:5408)	Nessus	Scientific Linux Local Security Checks	2020/12/15	2024/2/2	high
144660	EulerOS 2.0 SP9 : xorg-x11-server (EulerOS-SA-2021-1019)	Nessus	Huawei Local Security Checks	2021/1/4	2024/1/31	high
145723	EulerOS 2.0 SP8 : xorg-x11-server (EulerOS-SA-2021-1178)	Nessus	Huawei Local Security Checks	2021/2/1	2024/1/25	high
146173	EulerOS 2.0 SP5 : xorg-x11-server (EulerOS-SA-2021-1239)	Nessus	Huawei Local Security Checks	2021/2/4	2024/1/23	high
147587	EulerOS Virtualization for ARM 64 3.0.2.0 : xorg-x11-server (EulerOS-SA-2021-1378)	Nessus	Huawei Local Security Checks	2021/3/10	2024/1/10	high
236625	Alibaba Cloud Linux 3 : 0114: userspace graphics, xorg-x11, and mesa (ALINUX3-SA-2022:0114)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/5/14	high
239686	TencentOS Server 3: userspace graphics, xorg-x11, and mesa (TSSA-2022:0087)	Nessus	Tencent Local Security Checks	2025/6/16	2025/11/20	high
294354	MiracleLinux 8 : userspace graphics, xorg-x11, and mesa, xorg-x11-server-1.20.10-1.el8 (AXSA:2021-2100:01)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	high
294725	MiracleLinux 4 : xorg-x11-server-1.17.4-18.0.2.AXS4 (AXSA:2021-1136:01)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	high

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